fatal: Not a Git Repository Error

Use git init to create a new git repository in the current directory.

# Initialize a new repository
git init

# Or clone an existing repository
git clone https://github.com/user/repo.git
cd repo

Check if you are inside a repository and find its root.

# Check if .git exists
ls -la .git

# Find the root of the current repository
git rev-parse --show-toplevel

# Move to the repository root
cd "$(git rev-parse --show-toplevel)"

If working with submodules, they must be initialized.

# Clone repo with submodules
git clone --recurse-submodules https://github.com/user/repo.git

# Or initialize submodules after cloning
git submodule init
git submodule update

# If submodule .git is a file (not directory), run:
git submodule update --init --recursive