ERROR: Directory './' is not installable. Neither 'setup.py' nor 'pyproject.toml' found.

[abbas695]

Describe the Bug
a bug when installing apex from source
and it gives the following error
"ERROR: Directory './' is not installable. Neither 'setup.py' nor 'pyproject.toml' found."
Minimal Steps/Code to Reproduce the Bug
!git clone https://github.com/NVIDIA/apex
!cd apex
!pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --config-settings "--build-option=--cpp_ext" --config-settings "--build-option=--cuda_ext" ./
Expected Behavior
i expected it to install successfully, like the numerous times i used it before.
Environment
google colab enviroment

[abbas695]

i wasn't in the right directory ,