Checklists for software errors, setup, and tool workflows.

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Latest checklists

When building Docker images from within VS Code, you might see an error like build context ...

How to Fix 'fatal: refusing to merge unrelated histories' in Git
If you see fatal: refusing to merge unrelated histories when running git merge...

How to Fix Git Index Lock File Exists Error
If you see an error like fatal: Unable to create 'path/to/repo/.git/index.lock': Fi...

How to Fix the Git index.lock File Exists Error
You're in the middle of a Git operation—commit, merge, or rebase—and Git stops with: fa...

Fix npm ENOENT package.json Not Found Due to Wrong Directory
You run npm install or npm start and get an error like ENOENT: no...

Fix Docker Compose Port Allocation Errors
When you run docker compose up and see an error like "port is already alloca...