GetPathsOfAllDirectoriesAbove() cannot be evaluated after updating .Net Framework version (4.6.2 to 4.7.2)

问题

A project I have been working on was upgraded from .NET Framework 4.6.2 to 4.7.2. On build, in a file that is not my code, I get the following error:

I also see the same error in the build tab of my project properties.

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I'm at a loss- I've searched for the error and am coming up empty. Has anyone encountered and/or resolved this before?

回答1:

Looks like after upgrading your build tool is changed from MSBUILD to Roslyn. Microsoft.Managed.Core.targets is Roslyn target file.

if you have following Nuget packages installed:

• Microsoft.CodeDom.Providers.DotNetCompilerPlatform

• Microsoft.Net.Compilers

Then possibly it's causing the issue. Upgrade the Microsoft.CodeDom.Providers.DotNetCompilerPlatform to 2.x and remove the second one. That should fix the issue.

来源：https://stackoverflow.com/questions/59276192/getpathsofalldirectoriesabove-cannot-be-evaluated-after-updating-net-framewor