apt install python3-pip python3-all-dev python3-rospkg

apt install ros-melodic-desktop-full --fix-missing

pip3 install --upgrade pip setuptools wheel

pip3 install --upgrade --ignore-installed pip setuptools

pip3 install scikit-build

pip3 install cmake

pip3 install opencv-python

python3 -m pip install opencv-python==4.6.0.66 --verbose

apt-get install ros-melodic-cv-camera

pip3 install -r requirements.txt