Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You're working in VS Code on Linux, try to push or pull, and get a popup: "Git authentica...

You open the integrated terminal in Visual Studio Code using Ctrl+` (or Cmd+`<...

Fix ERR_NAME_NOT_RESOLVED After Chrome Update
If Chrome started showing ERR_NAME_NOT_RESOLVED on every website right after an upda...

Fix Nginx 502 Bad Gateway in Docker Alpine
You have an Nginx container running on Alpine Linux, and it returns a 502 Bad Gateway. This usual...

How to Fix npm ERR! enoent ENOENT: package.json Not Found
If you see npm ERR! enoent ENOENT: no such file or directory, open '.../package.json...

How to Manually Remove a Stuck Git index.lock File
If Git operations suddenly fail with an error like fatal: Unable to create 'path/.git/i...