Checklists for software errors, setup, and tool workflows.

How to Resolve Git Merge Conflicts on the Same Line

You run git merge and get a conflict marker on a single line. The file shows both ve...

Fix Docker Container Exits Immediately in Background Mode

You run a Docker container with -d (detached mode) and it exits immediately. The con...

Node.js Memory Limit Increase Not Working: Fixes

You set --max-old-space-size=4096 but Node.js still crashes with a memory error. Thi...

Fix npm run build Failed with PostCSS Error

You run npm run build and see a PostCSS error. This often happens after updating pac...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

Fix pnpm ERR_PNPM_OUTDATED_LOCKFILE Lockfile Error

When running pnpm install or pnpm update, you may see:

ER...