Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Debugging Jest Tests in VS Code: Breakpoints Not Hit

You set a breakpoint in a Jest test file, start debugging, and the test runs to completion but th...

Fix Windows Update Error 0x80070005: Cannot Install Updates

You try to install Windows updates but get error 0x80070005 with the message "Cannot install ...

How to Fix DNS_PROBE_FINISHED_NXDOMAIN in Chrome

When Chrome shows DNS_PROBE_FINISHED_NXDOMAIN, it means the browser can't fi...

Fix VSCode Git Authentication Failed: Permission Denied

If you see 'Git authentication failed' or 'permission denied' when pushing or pul...

Fix Git Clone Connection Timed Out Due to Proxy Settings

You run git clone https://github.com/example/repo.git and after a long pause you get...