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VistasGetPathsOfAllDirectoriesAbove() cannot be evaluated after updating .Net Framework version (4.6.2 to 4.7.2)
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.
![[2]](https://i.stack.imgur.com/3STCR.png)
I'm at a loss- I've searched for the error and am coming up empty. Has anyone encountered and/or resolved this before?
3 Respuestas
Responde la pregunta0
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.
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Ran into the same error - a compatibility issue between Microsoft.Net.Compilers 2.x (vs2017) and 3.x (vs2019) - downgrading from v3 to v2 fixed the issue specifically on our build agents which only had VS2017. v3 requires VS 2019 or later per roslyn-analyzers release spec.
Per the related error Method 'System.String.GetPathsOfAllDirectoriesAbove' not found - VS2017 would not even open the CSPROJ which was a clue about compatibility.
VS 2017 - CSPROJ Option to Install Missing Features for Microsoft.Net.Compilers v3
VS 2017 - Installing Missing Features
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This happned to me when I updated Microsoft.Net.Compilers in an old project. Removing Microsoft.Net.Compilers completely, and then updating Microsoft.CodeDom.Providers.DotNetCompilerPlatform resolved my problem.