Hi thanks for the tip.
When i search for those packages, either on the repositories, or on https://packages.ubuntu.com/ I get "unable to locate package"

So Im still stuck with this error

checking for lrelease... yes
./configure line 18202: pkg-config: command not found
configure: error: missing QTcore library, make sure libqt4core4 and libqt-dev are installed.

When I try to run ./configure

Does anyone know the solution?