Checklists for software errors, setup, and tool workflows.

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Latest checklists

If Chrome shows a black screen on Windows 11, especially after an update or when playing video, h...

If you see an error like fatal: Unable to create 'path/to/repo/.git/index.lock': Fi...

Fix Git Lock File Not Deleted After Crash
If Git reports a lock file error after a crash, it usually means a previous Git operation was int...

Fix git index.lock File Exists Error on Windows
If you see fatal: Unable to create 'index.lock': File exists. when running G...

How to Fix npm Package Json Not Found Error
When you run npm install or npm start and see npm ERR! package.js...

Fix VSCode Git Authentication Failed: Permission Denied
If you see 'Git authentication failed' or 'permission denied' when pushing or pul...