Unable to move PACKAGE DIST error

[michael-hawker]

Describe the bug

Seem to always see this on first run, sometimes more often. We should ensure we update or see if there's a resolution or workaround for this somewhere...

Steps to reproduce

Build WASM head (not the IIS one) in an experiment, get this issue sometimes (usually on first run, sometimes more frequently):

5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error : System.ApplicationException: Unable to move PACKAGE DIST H:\code\CommunityToolkitWindows\components\Converters\heads\Wasm\obj\Debug\net5.0\dist_work to H:\code\CommunityToolkitWindows\components\Converters\heads\Wasm\bin\Debug\net5.0\dist\package_153e6e3933bc5d07d488f97e23bf3e5b69d0c95a: System.IO.IOException: Access to the path 'H:\code\CommunityToolkitWindows\components\Converters\heads\Wasm\obj\Debug\net5.0\dist_work' is denied.
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at System.IO.Directory.InternalMove(String sourceDirName, String destDirName, Boolean checkHost)
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at Uno.Wasm.Bootstrap.ShellTask_vfc89b40db92a14b8f04d4c5c9c72690bdcd7b878.PrepareFinalDist() in D:\a\1\s\src\Uno.Wasm.Bootstrap\ShellTask.cs:line 1282 ---> System.IO.IOException: Access to the path 'H:\code\CommunityToolkitWindows\components\Converters\heads\Wasm\obj\Debug\net5.0\dist_work' is denied.
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at System.IO.Directory.InternalMove(String sourceDirName, String destDirName, Boolean checkHost)
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at Uno.Wasm.Bootstrap.ShellTask_vfc89b40db92a14b8f04d4c5c9c72690bdcd7b878.PrepareFinalDist() in D:\a\1\s\src\Uno.Wasm.Bootstrap\ShellTask.cs:line 1282
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    --- End of inner exception stack trace ---
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at Uno.Wasm.Bootstrap.ShellTask_vfc89b40db92a14b8f04d4c5c9c72690bdcd7b878.PrepareFinalDist() in D:\a\1\s\src\Uno.Wasm.Bootstrap\ShellTask.cs:line 1287
5>C:\Users\mhawker\.nuget\packages\uno.wasm.bootstrap\3.3.1\build\Uno.Wasm.Bootstrap.targets(175,5): error :    at Uno.Wasm.Bootstrap.ShellTask_vfc89b40db92a14b8f04d4c5c9c72690bdcd7b878.Execute() in D:\a\1\s\src\Uno.Wasm.Bootstrap\ShellTask.cs:line 234

### Expected behavior

Builds and deploys without issue

### Screenshots

_No response_

### Code Platform

- [ ] UWP
- [ ] WinAppSDK / WinUI 3
- [X] Web Assembly (WASM)
- [ ] Android
- [ ] iOS
- [ ] MacOS
- [ ] Linux / GTK

### Windows Build Number

- [ ] Windows 10 1809 (Build 17763)
- [ ] Windows 10 1903 (Build 18362)
- [ ] Windows 10 1909 (Build 18363)
- [ ] Windows 10 2004 (Build 19041)
- [ ] Windows 10 20H2 (Build 19042)
- [ ] Windows 10 21H1 (Build 19043)
- [ ] Windows 11 21H2 (Build 22000)
- [ ] Other (specify)

### Other Windows Build number

_No response_

### App minimum and target SDK version

- [ ] Windows 10, version 1809 (Build 17763)
- [ ] Windows 10, version 1903 (Build 18362)
- [ ] Windows 10, version 1909 (Build 18363)
- [ ] Windows 10, version 2004 (Build 19041)
- [ ] Other (specify)

### Other SDK version

_No response_

### Visual Studio Version

_No response_

### Visual Studio Build Number

_No response_

### Device form factor

_No response_

### Additional context

_No response_

### Help us help you

No, I'm unable to contribute a solution.

[michael-hawker]

Opened an Uno issue as we still see this, see: https://github.com/unoplatform/Uno.Wasm.Bootstrap/issues/776