Git-credential-manager-for-windows: "Fatal: AggregateException encountered" when prompting for username

[Sean18]

I have been using git commandline with their token as a password. We are using 2fa. I installed this tool, and the first time I use a git command, I see the following.

Even though I am prompted again for my username & password, I type it in (not the token) and it does not work.

You can see my .gitconfig has credential.helper=manager. I tried both the installer and the manual install. uninstalled/re-installed many times.

My windows credential manager has no entry, because I have yet to enter my user/password/authcode.

What should I do? Thanks.

[whoisj]

Interesting. Can you enable git config credential.writelog true and then run the tool. There should be a log written to .git\credential.log at the root of your repo. Pasting the contents back to this thread will help immensely with my helping your resolve your issue.

[Sean18]

I reinstalled the credential manager to try this, but now its not prompting me for anything. I have since installed SourceTree, in which I used my token password. I suspect it has saved the password somehow - though I am not sure of the mechanism.

I enabled the log, but nothing is written there. git pull is working for me now, just not with credential manager. I'll need to figure out how SourceTree is saving the password.

Thanks.

[whoisj]

Thanks for the update.

I'll keep trying to figure out what could be happening. We have an update to the CGM coming out asap, with luck that'll fix the issue, or at least fix the issue of the empty log file.

[whoisj]

This code was refactored. It should be more stable now.

I'm going to close this issue under the assumption that the issue is resolved.

Thanks, again, for reporting it.

[talha131]

I am detailing my experience here in order to help others.

I use git command line with github token as password. Git Credential Manager for Windows worked perfectly. But then I started to get Fatal: AggregateException encountered error every time I accessed github repository from command line.

I enabled logs using git config credential.writelog true. Ran a git pull, then checked logs at .git\credential.log.

Log Start (2016-01-23 06:39:02Z)
Microsoft Git Credential Manager for Windows version Git Credential Manager for Windows
Program::Get
   targetUri = https://github.com/
Program::CreateAuthentication
   detecting authority type
   authority it GitHub
Fatal: System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote name could not be resolved: 'api.github.com'
   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
   --- End of inner exception stack trace ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GithubAuthority.<ValidateCredentials>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GithubAuthentication.<ValidateCredentials>d__28.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass38_1.<<Get>b__2>d.MoveNext()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at Microsoft.Alm.CredentialHelper.Program.Get()
   at Microsoft.Alm.CredentialHelper.Program.Main(String[] args)
---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote name could not be resolved: 'api.github.com'
   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
   --- End of inner exception stack trace ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GithubAuthority.<ValidateCredentials>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GithubAuthentication.<ValidateCredentials>d__28.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass38_1.<<Get>b__2>d.MoveNext()<---

I noticed

The remote name could not be resolved: 'api.github.com'

Tried to ping the address and got couldn't resolve host error. I added 8.8.8.8 and 8.8.4.4 to my DNS list, and this solved the issue.

[halt-avmc]

I have same error. Here is my credential.log:

Log Start (2016-07-29 06:47:19Z)
Microsoft Git Credential Manager for Windows version 1.5.0
Program::Get
   targetUri = https://github.com/
Program::CreateAuthentication
   detecting authority type
   authority it GitHub
Program::GitHubCredentialModalPrompt
   prompting user for credentials.
Fatal: System.AggregateException: Произошла одна или несколько ошибок. ---> System.AggregateException: Произошла одна или несколько ошибок. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Базовое соединение закрыто: Непредвиденная ошибка при передаче. ---> System.IO.IOException: Сбой установки соединения из-за неожиданного формата пакета.
   в System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   в System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   в System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   в Microsoft.Alm.Authentication.GitHubAuthority.<AcquireToken>d__5.MoveNext()
   --- Конец трассировки внутреннего стека исключений ---
   в System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   в System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   в System.Threading.Tasks.Task`1.get_Result()
   в Microsoft.Alm.Authentication.GitHubAuthentication.InteractiveLogon(TargetUri targetUri, Credential& credentials)
   в Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass45_1.<<Get>b__2>d.MoveNext()
   --- Конец трассировки внутреннего стека исключений ---
   в System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   в System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   в Microsoft.Alm.CredentialHelper.Program.Get()
   в Microsoft.Alm.CredentialHelper.Program.Main(String[] args)
---> (Внутреннее исключение #0) System.AggregateException: Произошла одна или несколько ошибок. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Базовое соединение закрыто: Непредвиденная ошибка при передаче. ---> System.IO.IOException: Сбой установки соединения из-за неожиданного формата пакета.
   в System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   в System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   в System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   в Microsoft.Alm.Authentication.GitHubAuthority.<AcquireToken>d__5.MoveNext()
   --- Конец трассировки внутреннего стека исключений ---
   в System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   в System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   в System.Threading.Tasks.Task`1.get_Result()
   в Microsoft.Alm.Authentication.GitHubAuthentication.InteractiveLogon(TargetUri targetUri, Credential& credentials)
   в Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass45_1.<<Get>b__2>d.MoveNext()
---> (Внутреннее исключение #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Базовое соединение закрыто: Непредвиденная ошибка при передаче. ---> System.IO.IOException: Сбой установки соединения из-за неожиданного формата пакета.
   в System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
   в System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   в System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- Конец трассировки внутреннего стека исключений ---
   в System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   в System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   в Microsoft.Alm.Authentication.GitHubAuthority.<AcquireToken>d__5.MoveNext()<---
<---



Log Start (2016-07-29 06:47:43Z)
Microsoft Git Credential Manager for Windows version 1.5.0
Program::Erase
   targetUri = https://github.com/
Program::CreateAuthentication
   detecting authority type
   authority it GitHub
   deleting GitHub credentials

I guess it is because of this:
System.IO.IOException: Сбой установки соединения из-за неожиданного формата пакета.
Translation (I have a russian Windows with errors in russian):
System.IO.IOException: Connection failure due to unexpected packet format.

[whoisj]

Oh dear! @Haacked any chance you, or another Githubber, can assist with this issue.

I am not a "packet format" specialist and this issue is reported directly against github.com.

[haacked]

Does this problem happen all the time or is it intermittent? Are you behind a proxy? This seems to be related to SSL, but I'm not aware of any problems on GitHub.com's side.

[halt-avmc]

For now problem happen all the time.
Well, may be I am behind a proxy. I explain why "may be".
I am a corporate Windows 7 user with enabled "auto proxy configuration" via AD Group Policies ("Automatically detect settings" check box under system's Internet Properties is set). And we have McAffe proxy, which is in fact selected by Internet Explorer by default. But I have a direct Internet connection also.
So I'll check out with that checkbox switched off if the problem will dissapear.

[halt-avmc]

I recently checked 'git push' with "Automatic proxy discovery" checkbox disabled and it worked flawlessly.

[majkinetor]

I have the same problem behind the proxy, it started to happen during last week. Nothing changed in my configuration and it worked before with the same setup for months.

It happesn in GUI and console and is related to proxy. Relevant line from the log:

10:16:44.406141 ...\Program.cs:186      trace: [LogEvent] System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote name could not be resolved: 'api.github.com'
````

Thsi si my proxy setup (using proxy functions from [this](https://github.com/majkinetor/posh/tree/master/MM_Network) PowerShell module)

PS> proxyc
$Env:ftp_proxy = 'http://10.35.9.55:8080'
$Env:http_proxy = 'http://10.35.9.55:8080'
$Env:https_proxy = 'http://10.35.9.55:8080'
$Env:no_proxy = '10.'

PS > proxy
Override Server Enable
-------- ------ ------
10.* 10.35.9.55:8080 1

Problem happens all the time with tortoisegit and git.exe with the difference that sometimes prompt returns ASAP and sometimes I wait 10 or so seconds x 2 (two aggregation messages appear).

Here is the console output

13 [ M:0 D:0 A:0 ?:1 ] 16-11-30 10.23.12 C:\work_chocolatey\chocolatey-coreteampackages\automatic

virtualbox~> git push origin virtualbox

fatal: AggregateException encountered.
One or more errors occurred.
fatal: AggregateException encountered.
One or more errors occurred.
Username for 'https://github.com': majkinetor
Password for 'https://[email protected]':
Counting objects: 7, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (7/7), done.
Writing objects: 100% (7/7), 2.61 KiB | 0 bytes/s, done.
Total 7 (delta 2), reused 0 (delta 0)
remote: Resolving deltas: 100% (2/2), completed with 2 local objects.
To https://github.com/chocolatey/chocolatey-coreteampackages.git

409982f..8d3e8e0 virtualbox -> virtualbox

14 [ M:0 D:0 A:0 ?:1 ] 16-11-30 10.30.45 C:\work_chocolatey\chocolatey-coreteampackages\automatic
```

Notice the time - command started at 10:23, finished at 10:45, almost all of it was waiting.

[whoisj]

@majkinetor it sounds like your proxy setup is something that the NetFx system doesn't expect, and since the GCM relies on the NetFx WebProxy class to "do the right thing(tm)", the GCM is not expecting your setup either.

Which proxy are you using, how is it configured, and is there a knob we could add to the GCM to help you align its expectations with your setup?

[majkinetor]

There is nothing special about my setup. We use squid/3.1.10 and other tools work correctly (chocolatey, normal net clients etc.) For linux tools I have to use env vars as shown (git, gem, pip etc.) and there is nothing speecial about that either - if I remove them nothing changes.

I do not have git proxy set, however, I rely on http_proxy linux vars for that. Maybe that is the root of the problem (although it worked before).

[majkinetor]

IMO, the tool should do the following to set correct proxy:

• Try git proxy settings first
• Try IE proxy settings next
• Try linux env vars finally

[whoisj]

@majkinetor sounds great, any chance you've got bandwidth to cook up a contribution? 😃

[majkinetor]

Not at this moment, sorry, I am here only to report the bug. I have too many other FOS projects I am working on ATM. I am not telling you what to do, just telling you what I think should be done based on my experience with this.

[grigory-rechistov]

I can confirm that this bug happens when I am behind a HTTP proxy and attempt to push to Github. Credentials user interface fails with Fatal: AggregateException encountered.

[majkinetor]

On my sistem I have to also wait for minutes to pass and then regular git usr/password prompts appear.
This makes me frequently forget about them in the background.

I use this in my Powershell profile:

# Ask for password in GUI (easier to see and automate)
#https://marcus.handte.org/2011/09/07/enabling-interactive-prompts-in-cygwins-git-port/
$sshaskpass_path = 'C:\Program Files\TortoiseGit\bin\sshaskpass.exe'
if (Test-Path $sshaskpass_path) { $ENV:GIT_ASKPASS  = $sshaskpass_path } else { Write-Warning 'Git profile: sshaskpass not found' }
rm Variable:/sshaskpass_path

Unfortunatelly, AutoHotkey doesn't want to send keys to sshaskpass for some reason but its still valueable as it will prompt in the GUI. HTH somebody until this is fixed.

[majkinetor]

It actually works, here is the working AHK code that people can use instead of Git-Credential-Manager until this is fixed.

You need to set your git username and pass in the script now. Its easy to modify it to use CredentialManger tho and ask for pass/username first time.

[jrob]

I am getting the same issue. The only thing I can come up with is that it is trying to open a socket connection over 443 instead of an https connection over 443 and our proxy denies it. If I open a web browser and go to http://192.30.253.116:443 I get gateway time out. If I go to https://192.30.253.116 chrome complains about the cert name mismatch but the connection makes it. I believe there is still an issue and this should probably be reopened or pushed into another ticket.

YYYY.01.27 11:11:49 Microsoft Git Credential Manager for Windows version 1.8.1
11:11:49.316970 ...\Program.cs:367      trace: [CreateAuthentication] detecting authority type for 'https://github.com/'.
11:11:49.319452 ...uthentication.cs:126 trace: [GetAuthentication] created GitHub authentication for 'https://github.com/'.
11:11:49.319452 ...\Program.cs:426      trace: [CreateAuthentication] authority for 'https://github.com/' is GitHub.
11:11:49.386534 ...icationPrompts.cs:20 trace: [CredentialModalPrompt] prompting user for credentials for 'https://github.com/'.
11:11:58.485262 ...\Program.cs:145      trace: [Die] System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 192.30.253.116:443
   at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
   --- End of inner exception stack trace ---
   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- End of inner exception stack trace ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GitHubAuthority.<AcquireToken>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GitHubAuthentication.<InteractiveLogon>d__25.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Cli.Program.<>c__DisplayClass95_4.<<QueryCredentials>b__3>d.MoveNext()
   --- End of inner exception stack trace ---
---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 192.30.253.116:443
   at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
   --- End of inner exception stack trace ---
   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- End of inner exception stack trace ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GitHubAuthority.<AcquireToken>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Authentication.GitHubAuthentication.<InteractiveLogon>d__25.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Alm.Cli.Program.<>c__DisplayClass95_4.<<QueryCredentials>b__3>d.MoveNext()<---

[whoisj]

@jrob can you disable credential validation?

Easiest method would be SET GCM_VALIDATE=false then try Git again in the same console.

[maets]

I got this problem when my machine.config was corrupt on a windows env. Fixing the config fixed the issue.

[majkinetor]

Easiest method would be SET GCM_VALIDATE=false then try Git again in the same console.

Works for my case. Thx.

[mrvijaycode]

Where should i execute this ,.. please help me. I am getting same error

[whoisj]

@vijaymca open a Command Prompt

1. Run SET GCM_VALIDATE=false
2. Run git ... command

[KerryJones]

@whoisj I get "SET command not found"

[paulj3]

@KerryJones same issue. @whoisj - any insight?

[whoisj]

@whoisj I get "SET command not found"

Using __Command Prompt__? I find that difficult to believe. The SET command is a CMD built-in. If what you say is true, then you may have larger issues involved.

If SET GCM_VALIDATE=false works for you, you can make the change persist the changes use setx GCM_VALIDATE false.

[KerryJones]

Believe it -- it's true, but I also don't use CMD built in. I use Cmder.

[whoisj]

I use Cmder.

There's your problem. The instructions were to use Command Prompt (for a good reason :wink:).

[paulj3]

For me, my problem that I would:

• try to run a git command
• a github login prompt would show up
• i would enter my credentials
• then I would see the error at the top this thread.

I power-cycled my machine, and when I tried to log in again, github prompted me for my 2FA, and I logged in successfully.

the old 'Have you tried turning it off and on again'

[whoisj]

@paulj3 that is very bizarre. I wonder if it has anything to due with certificate/cookie/token caching in the underlying networking libraries. Thanks for the info.

[stephensmith9]

Same issue here. This seems to be the error (from my credential.log file):
---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

But what I don't understand is that I have been using Git Bash for Windows for weeks without any issues. Haven't made any changes or updates to my system. All of a sudden, today it gives me a fatal aggregateexception error? Does it possibly have something to do with a certificate expiring unbeknownst to me?

[btn0s]

Woah just happened to me today too.

[paulj3]

@whoisj - i'm having this problem again, but this time power cycling isn't fixing anything. How do I reset the token and force windows git 2fa to reauthenticate?

[paulj3]

@btn0s @stephensmith9 i re-installed git for windows, which prompted the 2fa again, allowing me to log in: https://git-scm.com/download/win

[stephensmith9]

@paulj3 @btn0s I will try a re-install and update back here. Thx.

[sfitts]

Seeing this now too and a colleague on Mac is getting prompted for credentials every time. Did something go sidewise on Github's side?

[stephensmith9]

@paulj3 @btn0s UPDATE: thanks paulj3 - after reinstalling git for windows I was prompted for the 2fa again, allowing me to log in. I was several minor versions behind anyway.

@sfitts I was wondering the same thing - I suspect something did happen on GitHub.

[sirsnyder]

Same for me since around 60 minutes. But I'm not using any manager.

[sfitts]

@stephensmith9 good to know the re-install worked. And I was wrong, my co-worker is also on windows, but not using the credential manager. He gets prompted every time (I get the error).

[stephensmith9]

@SirSnyder sounds like it's not related to any credential manager then but the authenticator on GitHub's side? Did you try a re-install of git?

[sfitts]

updated to the current release 2.16.2 and all is well.

[XaserAcheron]

FWIW, I too ran into this today, but an update to the Git client fixed it. I was on Git 2.9.0 before, if that's of any use.

[sirsnyder]

@stephensmith9 yes, looks like they did something on the ssl/tls handshake. An update to the latest git did it for me.

[ctolkien]

Also hitting this here.

[jetstreamin]

Me too. <|:(

[sebastienvercammen]

Same problem happened here, on Windows 10, using the credential manager. Updating to 2.16.2 (latest release as of 2 days ago) fixed it.

[shiftkey]

For those who are curious, today GitHub finally turned off support for some weak crypto standards and TLS 1.0 was one of them. GCM released an update to this a couple of months ago, or updating Git for Windows (which ships GCM) will ensure you're now using TLS 1.2.

[wggley]

Of course TODAY when I am working for about more than 15 hours when I going to commit,
WOW, I got this issue... serious guys ppl needs to stop breaking things like this, damn.

[kidzen]

any solution yet?

[ghost]

Solution: Update git to v2.16.2.

[kidzen]

thanks @mark-richardson-finsuite ...it work

[whoisj]

@wggley, @kidzen, @mark-richardson-finsuite the issue is that GitHub rolled out TLS 1.2 as a requirement today. The GCM was updated to meet the requirement as of v1.14.0 (Git for Windows v2.16.2 or better). Updating either ought to resolve the issue.

[NoemiLindqvist]

Awesome guys! I tried to fix it all day this issue. I contacted GitHub support and they answered I should deleted the password register on my computer what I had already done. I was getting mad!!
I just Updated git from version 2.10 to 2.16 and It worked!!

Thanks @mark-richardson-finsuite and @whoisj !!!

[dkwamboka]

Also updated, and this worked.

[samhk222]

In order to update on windows, just download the latest version from https://git-scm.com/download/win and install again the git and this message should disappear

[rsunmoto]

same issue here today and reinstall with latest version fixed it

[thewebmastercom]

I confirm that I had this same error today, and reinstalling with the latest version fixed it.

[ajibs]

I had this same problem while pulling code from github on my Visual studio code terminal. I found the advice above useful and hacked a solution together following the steps below:

• I updated Git.
• I updated Git Credential Manager for Windows
• Made some changes to the registry
• Updated my Visual studio code to the latest version
• Changed my Windows Path for Git from C:\Program Files (x86)\Git\bin. to C:\Program Files\Git\bin

This repo was quite useful.

I hope this helps someone.

[jdriviere]

Though I updated to the latest version (2.16.2) and it works now, I am still curious as to why this problem was occurring. Because it suddenly decided to appear on my console whenever I'd push to the remote (since about 2 days ago, I believe).

[christiannagel]

With git push, I had the same issue today. Upgrade from 2.14.1 to 2.16.2 solved this for me as well.

[whoisj]

Though I updated to the latest version (2.16.2) and it works now, I am still curious as to why this problem was occurring. Because it suddenly decided to appear on my console whenever I'd push to the remote (since about 2 days ago, I believe).

With git push, I had the same issue today. Upgrade from 2.14.1 to 2.16.2 solved this for me as well.

This is because the vast majority of GitHub hosted repositories only require authentication on push. Then open-source nature of the content of these repositories means that any person with a Git client can read from them.

[jdriviere]

@whoisj Not too sure what you mean by "... any person with a Git client can read from them." Are you referring to possible unauthorized users being able to read/edit files of the original author without permission? (Sorry for asking: I am no professional in that domain).

[sashberd]

The solution works!!!!!!!!

[ghost]

@whoisj, I disagree. I could not fetch or push without reentering my credentials.

[vsaldanya]

Only updating git bash it goes!! Thanks!!

[whoisj]

I disagree. I could not fetch or push without reentering my credentials.

Public or private repository? I'm see the initial request go through when fetching from the GCM repository. There's never a 401 challenge, and therefore git-credential is never engaged. I'd be curious if you were seeing something different.

[ghost]

I disagree. I could not fetch or push without reentering my credentials.

Public or private repository? I'm see the initial request go through when fetching from the GCM repository. There's never a 401 challenge, and therefore git-credential is never engaged. I'd be curious if you were seeing something different.

Private repo.

[AnupamChowdhury]

I was also facing same problem, after re-installing git with latest version 2.16.2 it asked for 2FA and now the error is gone.

[tcgriffith]

Same problem here, reinstalled git 2.16.2 solved it.

So...
breaking something intentionally so people have to get the latest upgrades? nice move.

[whoisj]

Private repo.

Well yea, there you go.

vast majority of GitHub hosted repositories

That "vast majority" are public. 😏 Regardless, glad to hear that you're unblocked.

[dscho]

breaking something intentionally so people have to get the latest upgrades?

That is not what happened. Please do not misrepresent it. We are all hard at work here to make Git, GitHub and Git Credential Manager work as well as we can.

What happened is that some of the older cryptographic algorithms are no longer safe. Some of them have been "broken" in the cryptographic sense (attacks have been demonstrated that are more feasible than they should be, and it is to be expected that these attacks soon become practical). GitHub announced already last year (although I have to admit that I, like you, had missed this back then) that support for these weak algorithms would be switched off, to protect users. Git for Windows/Git Credential Manager was prepared to accommodate that change, unfortunately only relatively late. And yes, you only get those fixes if you update.

So the assumption that we broke anything to force you to update is incorrect. Instead, we worked hard to make this as painless as we could (although admittedly, I had hoped for a smoother ride).

[tcgriffith]

@dscho
Thanks for the explanation! Sorry for being salty in the last comment, have a nice day!

[rasik210]

Initially, I was thinking something has gone wrong as I was making a github commit after a gap of a few days but when I faced the same issue on both my home and office PC then I realized that something is indeed wrong. Thank you everyone for helping.

[jdriviere]

@dscho Thank you for explaining what happened. :)

[LouisWayne]

Installed the latest git v2.16.2 and now it is fine haha

[lizzyhuang]

I use the git push with RStudio. It worked nicely before this March. Now I've run into this issue, my first time. I don't use command line and am on Windows 10. So this has been a headache for me. Every time I push things, it will show this error, the will ask me for Username and password. Then says "username or password" incorrect, even though I'm sure I use the right user name and correct password. I don't know how to solve it. It seems that has something to do with GitHub Windows desktop?

[ctolkien]

I don't know how to solve it.

The information is in this thread. You need to upgrade your version of Git.

[amalatesta]

Hi, I have the same problem, when start in my window bash (windows 7) I get the same error:

$ git pull
fatal: TaskCanceledException encountered.
Se cancel▒ una tarea.

Already up to date.

But, when i try in the same window for second time it work
$ git pull

Already up to date.

$ git credential-manager version
Git Credential Manager for Windows version 1.16.1
$ git --version

git version 2.17.1.windows.2

[whoisj]

@amalatesta that sounds like a transient network problem, could it be?

[ahmetertem]

I had same issue and updated git as @ctolkien said. It's okay now.

Thanks

[psw58]

I had same issue when I would push to GITHUB the windows credential center would open and ask for Git Login. All Login attempts failed. The problem was solved after updating Git for windows. Then after pushing to GitHub the GitHub login
opened, and I was able to login to Github, and push changes.

[whoisj]

opened git login instead of windows credential manager.

What does this even mean? I'm sorry, I'm not grokking your statement.

[HEHenson]

I found that updating my git on the local machine fixed the issue

[petethacker]

i was getting this issue when doing anything, even cloning.

using windows i was on git version git v2.17.1.2. after i updated to version v2.19.1 the problem went away.

[biserd]

Having the same error fatal: AggregateException encountered. when connecting VS Code to Git it was resolved by updating Git Credential Manager for Windows to the latest v1.18.3. Hope it helps.

[ManuchekhrT]

i updated git version, but still doesn't working, could anybody help?

[br4nnigan]

update from 2.12 to 2.20 fixed it for me (wasn't behind a proxy)

[ghost]

I have been getting "Fatal: AggregateException encountered." when I try to push.
Then I did below but same issue again.
git status still says my local is 4 commits ahead.

SET GCM_VALIDATE=false

credential.log

Log Start (2019-03-18 11:27:20Z)
Microsoft Git Credential Manager for Windows version 1.3.0
Program::Get
targetUri = https://github.com/
Program::CreateAuthentication
detecting authority type
authority it GitHub
Program::GithubCredentialModalPrompt
Program::ModalPromptForCredemtials
Program::ModalPromptForCredemtials
Program::ModalPromptDisplayDialog
successfully acquired credentials from user.
Fatal: System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Alm.Authentication.GithubAuthority.d__5.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at System.Threading.Tasks.Task1.get_Result()
at Microsoft.Alm.Authentication.GithubAuthentication.InteractiveLogon(TargetUri targetUri, Credential& credentials)
at Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass45_1.<b__2>d.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at Microsoft.Alm.CredentialHelper.Program.Get()
at Microsoft.Alm.CredentialHelper.Program.Main(String[] args)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Alm.Authentication.GithubAuthority.d__5.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at System.Threading.Tasks.Task1.get_Result()
at Microsoft.Alm.Authentication.GithubAuthentication.InteractiveLogon(TargetUri targetUri, Credential& credentials)
at Microsoft.Alm.CredentialHelper.Program.<>c__DisplayClass45_1.<b__2>d.MoveNext()
---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Alm.Authentication.GithubAuthority.d__5.MoveNext()<---
<---

[ghost]

Downloading and installing 2.21 version now.

[arbingordon]

Updating to 2.21 fixed it here too.

[pe-pan]

Upgrading to 2.23 fixed the issue (finally).