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

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

VSCode Breakpoint Not Hit Due to Source Maps: Fix

You set a breakpoint in your TypeScript or React source file, start debugging, and the breakpoint...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix 'Permission Denied' Error When Saving VS Code settings.json

You open VS Code's settings.json (either user or workspace), make a change, and try to save. ...

Fix Windows Update Error 0x80070005 by Repairing Registry Permissions

If you see error 0x80070005 when running Windows Update, the problem is often a permissions issue...

Fix Windows 10 Shared Folder Access Denied Error

You set up a shared folder on Windows 10, but when you try to access it from another computer, yo...