Practical fixes for tool errors, setup blocks, and workflow issues.

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

You run docker build and get an error like:

failed to solve: error fetching ...

Fix 'Microsoft Teams Proxy Authentication Required' Error

You open Microsoft Teams and instead of your chat list, you see a message: "Proxy authentication ...

Fix 'Git Repository Not Found Permission Denied' Error

You run git push or git clone and get errors like repository not fo...