Proxy Setup fail with self-hosted runner

[yannou38]

Description:
When trying to use the action, i get an error when the action try to set the proxy object

New-Object : La valeur fournie n'est pas valide ou la propriété est en lecture seule. Modifiez la valeur, puis 
réessayez.
Au caractère C:\ghr\IOTSEC-gh-actions\1\_work\_actions\actions\setup-dotnet\c7e7147fd3e41056e75a761416c06f5fa781b5fb\ex
ternals\install-dotnet.ps1:366 : 45
  ... ttpClientHandler.Proxy =  New-Object System.Net.WebProxy -Property @{
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      CategoryInfo          : InvalidData : (:) [New-Object], Exception
      FullyQualifiedErrorId : SetValueException,Microsoft.PowerShell.Commands.NewObjectCommand

Task version:
commit id c7e7147

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Repro steps:

• Set a proxy in system env variable on your selfhosted runner
• run action

- name: test setup dotnet
        id: testdotnet
        uses: actions/setup-dotnet@c7e7147fd3e41056e75a761416c06f5fa781b5fb
        with:
          dotnet-version: '7'

Expected behavior:
Proxy should be set and dotnet should get downloaded

Actual behavior:
Error pasted above

[priyagupta108]

Hi @yannou38 👋,
Thank you for your report. We'll investigate the issue and get back to you with the details!

[gowridurgad]

Hi @yannou38, We are unable to reproduce the error you are experiencing. We've successfully installed the dotnet without encountering any errors.
Here are a few troubleshooting steps to help resolve the issue.

• Proxy Settings: Verify that your proxy settings are correctly configured and that the values provided are valid.
• Try Different Proxy: If possible, test with a different proxy server to rule out issues specific to the current proxy.
• Check Self-Hosted Runner Configuration: Ensure that the self-hosted runner is configured correctly and has the necessary permissions to set the proxy and run the script.
• Run Script Locally: Try running the install-dotnet.ps1 script locally to see if the issue persists outside of the GitHub Actions environment.

If the problem continues, please provide more details about your environment, setup and attach link to the build or public repository. So we can assist further.