Knowledge base for software setup, errors, and daily tool work.

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 ERR_CONNECTION_RESET Caused by Chrome Extensions

If you see the ERR_CONNECTION_RESET error in Chrome, it often means a network connection was inte...

Fix Windows Update Error 0x800f081f: Repair Tool Steps

If you see error 0x800f081f while installing a Windows update, it usually means the update packag...

Fix Cloudflare 522 Error by Disabling Proxy Temporarily

If you see a Cloudflare 522 error, it means Cloudflare tried to reach your origin server but the ...

Fix Nginx Upstream Connection Refused in Proxy Pass