Setup-dotnet Tasks fails for multiple workflows from the URL Change

[vinaysandela]

Description:
Setup-dotnet Tasks fails for multiple workflows #3186928

Task version:
Specify the task version

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Repro steps:
Setup-dotnet Tasks fails for multiple workflows from the URL Change
Error:
Task in the workflow -

• name: Set up .NET Core
  uses: actions/setup-dotnet@v4
  with:
  dotnet-version: 8.0.x

Error:
Run actions/setup-dotnet@v4
"C:\Program Files\PowerShell\7\pwsh.exe" -NoLogo -Sta -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command & 'E:\GHE-AR\AR5_work_actions\actions\setup-dotnet\v4\externals\install-dotnet.ps1' -SkipNonVersionedFiles -Runtime dotnet -Channel LTS
OperationStopped: E:\GHE-AR\AR5_work_actions\actions\setup-dotnet\v4\externals\install-dotnet.ps1:481
Line |
481 | throw $DownloadException
| ~~~~~~~~~~~~~~~~~~~~~~~~
| Unable to download https://builds.dotnet.microsoft.com/dotnet/Runtime/8.0.[12](https://github.com/<>/<>/actions/runs/12813433294/job/35722398808#step:3:13)/dotnet-runtime-8.0.12-win-x64.zip.
Warning: Failed to install dotnet runtime + cli, exit code: 1. OperationStopped: E:\GHE-AR\AR5_work_actions\actions\setup-dotnet\v4\externals\install-dotnet.ps1:481

Expected behavior:
Installation completed

Actual behavior:
Exception during Download

[priyagupta108]

Hi @vinaysandela 👋,
Thank you for your report. We will investigate the issue and get back to you as soon as we have updates.

[priya-kinthali]

Hello @vinaysandela👋,
I attempted to reproduce the error on my end but was unable to do so. I am able to successfully run the setup-dotnet step in a self-hosted runner, as seen in the screenshot below.

Could you please try re-running the workflow and see if the issue persists? If it does, could you share a link to a minimal repository that demonstrates the problem? This would greatly help us understand and resolve the issue.
Thank you for your cooperation!

[vinaysandela]

Hey @priya-kinthali
We have tried multiple times and want to confirm that setup-dotnet@v1 and setup-dotnet@v2 are working for us but not v3 and v4.
Is these versions dependent on Powershell versions on the runner?
Comparing with the screenshot above, we see that difference in pwsh versions.

Below is the screenshot from v1/2 and v3/v4

Using v4-

Using v2

[priya-kinthali]

Hi @vinaysandela👋,
I was able to successfully set up the actions/setup-dotnet@v4 from my end, so the issue seems to be specific to your self-hosted runner setup or configuration. Here are a few points to consider:

• PowerShell Version: Ensure that you have the correct PowerShell version installed on your runner.
• Network Issues: Verify if there are any network restrictions or proxy settings that might be blocking the download.
• Permissions: Check if your self-hosted runner has the necessary permissions to download and install the .NET runtime. For more details on self-hosted runner configurations, please refer to this documentation.

To further diagnose the issue, please provide:

1. A minimal public repository that can reproduce the error.
2. The entire logs with debug mode enabled. You can enable debug mode by setting ACTIONS_STEP_DEBUG to true in your workflow.

Thank you for your cooperation.