Additional notes
If the plugin does not appear in GIMP, run GIMP from the / usr/lib/gimp/2.X/plug-ins directory; if there are any errors, they are shown in the terminal. Also try running the file as follows:
If the plugin does not appear in GIMP, run GIMP from the / usr/lib/gimp/2.X/plug-ins directory; if there are any errors, they are shown in the terminal. Also try running the file as follows: