Checklists for software errors, setup, and tool workflows.

Fix VS Code 'Permission Denied' When Saving Files

You're editing a file in Visual Studio Code, hit Ctrl+S, and get an error: "Failed to sav...

VS Code IntelliSense Not Working for C++: Practical Fixes

If you're editing C++ code in Visual Studio Code and IntelliSense stops working—no auto-compl...

Git Detached HEAD Warning Explained: Causes and Fixes

You see a warning: "You are in 'detached HEAD' state." This happens when you chec...

Fix VSCode Permission Denied Extension Errors

If you see a "permission denied" error when trying to install or update an extension in V...

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules

You run npm install or npm start and get something like:

...