This error means Git cannot find a `.git` folder in your project. Check if you're in the correct directory or initialize Git with `git init`.

The 'fatal: not a git repository' error occurs when Git commands are executed in a directory that doesn’t contain a Git repository. Each Git project is marked by a hidden .git folder that stores the project's version history and configurations. To resolve this error, first verify that you are in the correct directory by running pwd (on Unix-like systems) or cd (on Windows). If your project lacks a .git folder, you can initialize a new Git repository by running git init in the project directory. Alternatively, if you accidentally deleted the .git folder, restore it if possible, as this folder is crucial to Git operations. Sometimes, switching to the project’s root folder resolves the error when working in nested directories. If your intent was to clone a repository instead, make sure to clone it from GitHub using git clone <repo-url>, which will include the required .git folder for a functional Git repository.