Untrack files which are already added in gitignore file

1. Commit all your changes

2. Remove everything from the repository cache. Go to your repo directory and run this command.

git rm -r --cached .

It will only clear the cache. Your files and git history will stay.

3. Re add everything

git add .

4. Commit the fix

git commit -m 'fix .gitignore'

Sit back and relax. It'd done.