Command 'apex' not found

[gobears21]

when i try with
cd && apex && pip install -v --disable-pip-version-check --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./
it shows
Command 'apex' not found

[vhvkhoa]

can you try below command in the repo ?
cd apex && pip install -v --disable-pip-version-check --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./