Cura Ubunta install numpy error

On ubuntu 18.04 when I launch from the menu nothing happens, if I launch from the terminal I get this numpy related error

ImportError: 
Importing the multiarray numpy extension module failed.  Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control).  Otherwise reinstall numpy.

I dont think numpy is installed on the system itleast via PIP, when I install numpy via pip the error does not go away. Any ideas?