Practical fixes for tool errors, setup blocks, and workflow issues.

Fix Python Permission Denied When Running pip install -r requirements.txt

You run pip install -r requirements.txt and get a PermissionError or

Fix Git SSL Certificate Problem on Corporate Networks

If you see git SSL certificate problem: unable to get local issuer certificate while...

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

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

...