proj version 0.0.0 is installed code example
Example: Proj 4.9.0 must be installed.
!pt-get install libproj-dev proj-data proj-bin
!apt-get install libgeos-dev
!pip install cython
!pip install cartopy
!pt-get install libproj-dev proj-data proj-bin
!apt-get install libgeos-dev
!pip install cython
!pip install cartopy