Make build error

Hello,
following this doc Installing from source
I got this error.

(project_env) C:\Users\Raffaele\Desktop\aw-sec\activitywatch>make build
if [ -e “aw-core/.git” ]; then
echo “Submodules seem to already be initialized, continuing…”;
else
git submodule update --init --recursive;
fi
-e non atteso.
make: *** [Makefile:28: build] Error 255