Inconsistency with qtchooser

Hi All

While digging through issues with my .xsession errors, I found this:

qtchooser  -run-tool=linguist
qtchooser: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/linguist': No such file or directory

But linguist is installed and runs fine.

ls -l //usr/lib/x86_64-linux-gnu/qt5/bin/linguist 
-rwxr-xr-x 1 root root 1411576 Jan 12 17:15 //usr/lib/x86_64-linux-gnu/qt5/bin/linguist

OK. I found a solution for this. I had to use google translate because it is in German.