Terragrunt error - Error in function call; Call to function "get_repo_root" failed:

Issue: Error in function call; Call to function "get_repo_root" failed

This error occurs in Spacelift when Terragrunt tries to use the get_repo_root function. By default, Spacelift does not use Git to check out your code; instead, it downloads an archive directly from the Version Control System (VCS). This can cause errors with functions that require a Git repository structure.

Solution for GitHub Users

If you are using GitHub as your VCS provider, you can enable Git checkout functionality for your stack by adding a special label.

1. Add the Magic Label
   Add the label feature:enable_git_checkout to your stack. This enables Git checkout, allowing Terragrunt to use the get_repo_root function without issues.

2. Run Again
   After adding the label, retry the run to ensure the error is resolved.

For more information, refer to Spacelift's documentation on Git checkout support for GitHub.

Solution for Other VCS Providers

If you are using a VCS provider other than GitHub, please contact Spacelift Support to enable Git checkout for your account. Our support team can assist you in configuring this feature to ensure compatibility with functions like get_repo_root.