Home: NuGet.Build.Tasks.Pack.dll shipped delay signed in VS2017 (d15rel 26014.00)

[AArnott]

On a machine without \\vspreinstall\preinstall\preinstall having run:

Create a .NET Core project.
Try to package it.
The build fails because NuGet.Build.Tasks.Pack.dll is delay or test signed:

Could not load file or assembly 'NuGet.Build.Tasks.Pack, Version=4.0.0.0, Culture=neutral, PublicKeyTo
ken=31bf3856ad364e35' or one of its dependencies. Strong name validation failed.

msbuild /t:pack
  ConsoleApp1 -> C:\Users\andre\OneDrive\Documents\Visual Studio 2017\Projects\ConsoleApp1\ConsoleApp1\bin\Debug\netcoreapp1.0\ConsoleApp1.dll
  ConsoleApp1 -> C:\Users\andre\OneDrive\Documents\Visual Studio 2017\Projects\ConsoleApp1\ConsoleApp1\bin\Debug\net46\ConsoleApp1.exe
C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Sdks\NuGet.Build.Tasks.Pack\buildCrossTargeting\NuGet.Build.Tasks.Pack.targets(73,5): error MSB4062:
 The "NuGet.Build.Tasks.Pack.PackTask" task could not be loaded from the assembly C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Sdks\NuGet.Build.T
asks.Pack\buildCrossTargeting\..\Desktop\NuGet.Build.Tasks.Pack.dll. Could not load file or assembly 'NuGet.Build.Tasks.Pack, Version=4.0.0.0, Culture=neutral, PublicKeyTo
ken=31bf3856ad364e35' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A) Confirm that the <UsingTask> declaration is correct,
that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [C:\Users\andre\OneDri
ve\Documents\Visual Studio 2017\Projects\ConsoleApp1\ConsoleApp1\ConsoleApp1.csproj]

[AArnott]

Apparently at least one other assembly is also not fully signed: NuGet.Commands

[xwipeoutx]

Is there a workaround for this if we've already installed it?

[AArnott]

@xwipeoutx: one workaround is to execute this from an elevated VS Developer Prompt

sn -Vr NuGet.Build.Tasks.Pack,31bf3856ad364e35
sn -Vr NuGet.Commands,31bf3856ad364e35

the same for any other assemblies that have this problem.

But be sure to unregister them later (using sn -Vu) after the bug is fixed.

[rrelyea]

@rohit21agrawal looked at RC2 (not RC2.1) and believes that those DLLs are properly signed there. He'll continue to dig into it to make sure RC3 has this addressed.

[rohit21agrawal]

i have replaced the culprit unsigned nuget package on the nuget-build (and cli-deps) feed on myget. The next nightly build should pick up the right package and have signed DLLs

[rohit21agrawal]

verified with jacques from the WTE team that the build is picking up the signed nupkg now. tomorrow's build will not have this issue. closing this issue.

[davghouse]

I just installed VS 2017 RC and got this bug, does that make sense?

[rohit21agrawal]

@davghouse can you tell us the build number?

Go to Help -> About Microsoft Visual Studio

[davghouse]

Microsoft Visual Studio Professional 2017 RC
Version 15.0.26020.0 D15REL
Microsoft .NET Framework
Version 4.6.01586

Installed Version: Professional

NuGet Package Manager 4.0.0

[rohit21agrawal]

@davghouse this build is over a month old, and yes it did have this problem. could you try updating your VS?

[davghouse]

@rohit21agrawal Okay I looked around but I appear to have the latest version based off of https://www.visualstudio.com/en-us/news/releasenotes/vs2017-relnotes. I'm not very familiar with VS, should I look somewhere else?

[rohit21agrawal]

@davghouse my bad.. wait for a few days for the next update..and use the work around mentioned in the post above until then.

[ShreeSam]

Hi Team,

We are getting same error in out TFS 2017 build. Builds were working fine till last week. Not sure what went wrong. All builds are failing with below error.

D:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets (104, 5)
The "NuGet.Build.Tasks.Pack.PackTask" task could not be loaded from the assembly D:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Sdks\NuGet.Build.Tasks.Pack\build..\CoreCLR\NuGet.Build.Tasks.Pack.dll. Could not load file or assembly 'NuGet.Commands, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621) Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.

Solutions are building successfully on developers machines.
Any help or suggestions would be more helpful.

Thanks,
Shree

[dasMulli]

@ShreeSam this looks like the issue logged at https://github.com/dotnet/sdk/issues/1384

[ShreeSam]

Hi dasMulli,

No. We are not getting any System.IO error.

Thanks,
Shree

[rohit21agrawal]

@ShreeSam can you provide details of the Visual Studio version you are using?

[ShreeSam]

Hi Rohit,

Please find the attached screenshot.

Thanks,
Shree