The "Failed to download action" error in GitHub Actions typically occurs when the runner cannot retrieve the required metadata or archive (tarball/zipball) for a step defined in your workflow. While it often looks like a network glitch, it is frequently caused by configuration errors, authentication gaps, or specific repository settings. Common Causes and Solutions 1. Incorrect Action Reference
Under the section, select "Accessible from repositories in the same organization" or specific repositories. github actions failed to download action
Double-check the syntax owner/repo@version (e.g., actions/checkout@v4 ). Ensure you aren't pointing to a non-existent branch or tag. 2. Authentication and Private Repository Access The "Failed to download action" error in GitHub
Alternatively, use a Personal Access Token (PAT) with repo scope to checkout the action manually. 3. Network and SSL Issues (Self-Hosted Runners) which has limited permissions.
Navigate to the (the one containing the action). Go to Actions > General .
GitHub Actions runners use a default GITHUB_TOKEN , which has limited permissions. If your workflow tries to use an action from a or internal repository within your organization, it may fail because the runner lacks the credentials to "see" that repo. Fix for Private Repos: