Why Does My Go Build Fail with 'Unknown Revision' for a Private Repository?

Go Build Fails with "Unknown Revision" Error for Private Repository

When developing and building a Go application that depends on private repositories, users may encounter the error message "go: finding [private repo]: unknown revision". This article explains the potential causes of this issue and provides possible solutions.

The initial problem stems from the module constraints not being satisfied when building on a different computer (computer B) from the one where the code was originally developed (computer A). Despite the presence of the go.mod and go.sum files that define the dependencies, the module cache on computer B cannot retrieve the required dependencies from the private repository.

To troubleshoot this issue, consider the following steps:

1. Check Git Configuration:

   • Verify that the system's Git configuration is set up to use SSH instead of HTTPS for the private repository. This can be done with the command:

     • git config --global url."ssh://git@yourserver".insteadOf "https://yourserver"

2. Review Repository Permissions:

   • Ensure that the Git user on the current computer has adequate access to the private repository. Check the repository's access control settings to confirm that the user has read permissions.

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