I gave up with ubuntu 18 and have installed limesuitegui on fedora28
I used the instructions in this link. http://blog.reds.ch/?p=43
SoapySDRUtil and LimeUtil are working
LimeQuickTest with limesdr-mini plugged in I get fail on the lookback test
Not sure if this is a problem ?
I am still working on getting gqrx installed as that is the only application
that I have used in the past.