Checklists for software errors, setup, and tool workflows.

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

You try to connect via SSH and see an error like Host key verification failed or

How to Fix an Outlook File Locked Due to Sync Issue

You try to open Outlook and see a message that your data file (.pst or .ost) is locked. Often thi...

MongoDB Authentication Failed: Administrator Checklist

When a MongoDB client reports an authentication failure, the error message usually includes

GitLab Runner Not Running Jobs: Troubleshooting Checklist

If your GitLab Runner shows as registered but never runs any jobs, or jobs stay stuck in 'pending...

Fix OneDrive 'Permission Denied' When Accessing Folders

You try to open or sync a folder in OneDrive and get a "Permission Denied" or "Access Denied" mes...