Checklists for software errors, setup, and tool workflows.

How to Fix Git 'index.lock' File Exists Error

When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...

How to Disable pip's Externally Managed Environment Warning

If you see the error error: externally-managed-environment when trying to install Py...

Fix DNS Probe Finished NXDOMAIN with VPN Issues

When you see 'DNS probe finished NXDOMAIN' in your browser while a VPN is active, it mean...

Fix DNS Probe Finished NXDOMAIN on Custom DNS Server

If you see “DNS PROBE FINISHED NXDOMAIN” in Chrome or another browser while using a custom DNS se...

Fix Python UnicodeDecodeError 'charmap' Codec

You're reading a file in Python and get:

UnicodeDecodeError: 'charmap' ...