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 &#...

Fix Nginx Configuration Test Failure for Upstream Directive

When you run nginx -t and get an error involving the upstream directive...

Fix Git Clone Connection Timed Out on AWS CodeCommit

If you're seeing git clone connection timed out when trying to clone a repositor...

Fix 'Windows Cannot Access Shared Folder' Samba Error

You try to open a shared folder from a Linux Samba server on a Windows machine and get: 'Wind...

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...

Resolve Python Package Version Mismatch Errors

You run pip install and see errors like “package A requires package B==1.0 but y...