trying to push a component: error MSB3231: Unable to remove directory "obj\Debug\Metadata" is causing failure.

[EUK-156DavidM]

I've built a code component and when trying to push the solution into the selected environment I get the error:

error MSB3231: Unable to remove directory "obj\Debug\Metadata". The process cannot access the file '\\?\..\..\PCFNAME\obj\PowerAppsToolsTemp_eukd\obj\Debug\Metadata\Controls' because it is being used by another process. [C:\..\..\PCFNAME\obj\PowerAppsToolsTemp_eukd\PowerAppsToolsTemp_eukd.cdsproj]
I've been looking into this for a while and think the .cdsproj file isn't finished it's part of the process. I've tried deleting all of the temp files along with the 'obj' and 'bin' folders which hasn't helped at all. MSB3231 error code doesn't give me much information either. From Microsoft "This error occurs when MSBuild tries to delete a directory, but the operating system returns an error."

[mikefactorial]

I've noticed this issue too but only seems to happen on my Windows on ARM Surface Laptop weirdly enough. Don't see it when building on Windows runners in AzDO or GitHub and don't see it on my X86. Not sure if it helps others who are having the same.

[EUK-156DavidM]

Unfortunately, I'm on Windows and don't have a chance in hell of using Windows runners, our IT department are very anti-allow anything. I'm a bit of a trial to the company in that we don't have software dev teams. It's just like doing it at home but without the free reign to do anything of any use...

[mikefactorial]

I found a workaround for this after living with it for a while. Adding a Directory.Build.targets to the root directory where the solution source lives and overriding the CleanUpIntermediateFiles target to try to clean up the files and only warn on fail will at least lets the build succeed.

<!--
  Override CleanUpIntermediateFiles to use ContinueOnError="WarnAndContinue".

  This override runs AFTER the SDK target (Directory.Build.targets is imported last)
  and replaces the behavior with ContinueOnError so the build does not abort.

  RemoveDir with ContinueOnError="WarnAndContinue" attempts the delete and writes
  a warning on failure, but does not fail the build. Any locked Metadata dirs will
  remain on disk until the next clean build, which has no functional impact.
-->
<Project>
  <Target Name="CleanUpIntermediateFiles" AfterTargets="PowerAppsPackage">
    <RemoveDir
      Directories="$(SolutionPackagerMetadataWorkingDirectory)"
      Condition="Exists('$(SolutionPackagerMetadataWorkingDirectory)')"
      ContinueOnError="WarnAndContinue" />
    <RemoveDir
      Directories="$(SolutionPackagerLocalizationWorkingDirectory)"
      Condition="Exists('$(SolutionPackagerLocalizationWorkingDirectory)')"
      ContinueOnError="WarnAndContinue" />
    <Message Importance="High" Text="Completed intermediate files clean up." />
  </Target>
</Project>