System.IO.DirectoryNotFoundException: Could not find a part of the path csc.exe'. code example
Example 1: Could not find file \bin\roslyn\csc.exe
//Run this in package manager console
Update-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform -r
Example 2: roslyn csc.exe visual studio 2017
<Target Name="CopyRoslynFiles" AfterTargets="AfterBuild" Condition="!$(Disable_CopyWebApplication) And '$(OutDir)' != '$(OutputPath)'">
<ItemGroup>
<RoslynFiles Include="$(CscToolPath)\*" />
</ItemGroup>
<MakeDir Directories="$(WebProjectOutputDir)\bin\roslyn" />
<Copy SourceFiles="@(RoslynFiles)" DestinationFolder="$(WebProjectOutputDir)\bin\roslyn" SkipUnchangedFiles="true" Retries="$(CopyRetryCount)" RetryDelayMilliseconds="$(CopyRetryDelayMilliseconds)" />
</Target>