As many people have stated on the application’s store page, gResistor doesn’t seem to start on Ubuntu.
The Problem
If you run the program from the command line, you’ll notice that there is a missing library.
$ gresistor <Error output here . . .> ImportError: No module named glade
The Solution
Install the missing Python 2 library
sudo apt-get install python-gtk2 python-glade2
After installing it, you should be able to launch via the GUI or command line.