Getting error while configuring build pipeline for .net framework project on azure VM IIS

Question

We are getting error while configuring build pipeline for .net framework project having single .sln file for 3 different applications using azure devops pipelines ,

##[error]The nuget command failed with exit code(1) and error(Error parsing solution file at D:\a\1\s\GSA.sln: Exception has been thrown by the target of an invocation. Could not load file or assembly 'Microsoft.Build.Framework, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.)

We are running below steps,

If we do not specify the Nuget version then restore command is working but with Nuget version it is failing.

Answer 1

Hello Nikhil,

Your pipeline is using NuGet 4.7.2, which is too old for the build tools on your agent. That’s why you’re getting the Microsoft.Build.Framework error.

You just need to update the NuGet version in your pipeline. Here’s how:

1. Edit your pipeline in Azure DevOps.

2. Find the step that says Use NuGet 4.7.2 (it’s usually near the top).

3. Click on that step to open its settings.

4. In the Version field, change it from 4.7.2 to 5.5.0 (or just type latest to always use the newest version).

5. Save your pipeline.

6. Run the pipeline again.

That’s it! This update will make sure NuGet and your build tools are compatible, and your build should work without that error.

Hope this helps!

Answer 2

It seems that the problem is caused by a nuget version that is incompatible to the used msbuild version. It can be resolved by changing the version of Nuget from 4.4.1 to 5.5.0 (or higher).
See https://developercommunity.visualstudio.com/t/nuget-restore-fails-with-error-error-parsing-solut/988784#T-N989407 and https://status.dev.azure.com/_event/182998791
In my case, a newer nuget version was indeed the soultion

Answer 3

Can anyone assist us with the above error.