I just ran into this same problem in Kubuntu 16.04, in the process of migrating from PCLinuxOS. The same solution also worked for me.
The command "which gnucash" revealed that I have a script in my ~/bin that was used to work around a problem in a previous gnucash problem (IIRC, the guile library was missing). Removing this script resolved the issue.
I just ran into this same problem in Kubuntu 16.04, in the process of migrating from PCLinuxOS. The same solution also worked for me.
The command "which gnucash" revealed that I have a script in my ~/bin that was used to work around a problem in a previous gnucash problem (IIRC, the guile library was missing). Removing this script resolved the issue.