Hi there, 

I first set up odoo via deb installation method and there were no problems.. Than we (our company) wanted to test different versions side by side, so i tried uninstalling odoo first and reinstalling version 10 and 9 via github.. Which didn't work at all.. Now reinstalling the same deb version i initially installed doesn't work anymore, has something to do with postgresql, which isn't installed neither anymore.. When entering whereis postgresql or psql it doesn't find anything, although i just reinstalled postgresql via apt.. how can i start over and install odoo 10 via apt.. Thanks in advance for any help..

Sincerely,