Sdk: Error installing SDK in Linux Mint 18.2

[joel-g]

Steps to reproduce

Following installation instructions from:
https://www.microsoft.com/net/download/linux-package-manager/ubuntu18-04/sdk-current

sudo apt-get install dotnet-sdk-2.1
Causes error

Expected behavior

Installation of dotnet SDK

Actual behavior

This terminal output

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 dotnet-sdk-2.1 : Depends: dotnet-runtime-2.1 (>= 2.1.2) but it is not going to be installed
                  Depends: aspnetcore-runtime-2.1 (>= 2.1.2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Environment data

.NET Command Line Tools (1.0.1)

Product Information:
Version: 1.0.1
Commit SHA-1 hash: 005db40cd1

Runtime Environment:
OS Name: linuxmint
OS Version: 18.2
OS Platform: Linux
RID: ubuntu.16.04-x64
Base Path: /usr/share/dotnet/sdk/1.0.1

I'm surprised I was able to actually run `dotnet --info because of the previous reported error

[peterhuene]

I've reproduced this with a stock Mint 18.2 VM.

The problem appears to be that dotnet-runtime-deps-2.1 depends on libicu60, which is not available as a xenial package; only libicu55 is.

However, I was not able to reproduce having a 1.0 dotnet installed as a result; @joel-g could this have been done at some point in the (distant) past for you?

Looking into this more.

[peterhuene]

@leecow Are we seeing reports of being unable to install dotnet 2.1 on Ubuntu 16.x or Mint 18.x? The runtime packages don't seem to have the correct dependencies.

[peterhuene]

Looks like https://github.com/dotnet/core-setup/issues/4049 is related.

[peterhuene]

@joel-g I can confirm the workaround in this comment (which is to install libicu60 manually) does work for Mint 18.2.

We need to fix this in our xenial packages, though; someone from the runtime team needs to confirm that icu60 is required or if the package can get away with depending on icu55 for xenial.

[leecow]

If you want to set up a Xenial system them you should use the Xenial feed, not the Bionic feed. See https://www.microsoft.com/net/download/linux-package-manager/ubuntu16-04/sdk-current for config steps.

[peterhuene]

Whoops, didn't even notice the original link above was for 18.04 when I ran through the repro.

Going to quickly confirm that's the issue.

[peterhuene]

Thanks, @leecow for the sharper eyes. @joel-g I've confirmed that using the Xenial feed @leecow linked to has no dependency issue.

To correct:

$ sudo apt-get remove packages-microsoft-prod

And then follow the instructions again at https://www.microsoft.com/net/download/linux-package-manager/ubuntu16-04/sdk-current.

Closing this issue as resolved. Please reactivate if you're still unable to install the SDK. Cheers!

[joel-g]

I followed your suggestion but get this now

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'dotnet-sdk-2.1.101' for regex 'dotnet-sdk-2.1'
Note, selecting 'dotnet-sdk-2.1.105' for regex 'dotnet-sdk-2.1'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 dotnet-sdk-2.1.101 : Depends: aspnetcore-store-2.0.6 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

[peterhuene]

Weird, it should select 2.1.302, which is the latest 2.1 .NET Core SDK version I get if I follow those instructions. I assume apt's cache is up-to-date?