Ok so i wiped my entire computer and reinstalled linux just to clear everything. Then i started from scratch and installed all the things and followed the documentation. When i ran setupDevelopmentEnvironment, after about 45 minutes i got an error saying:
(i started a few lines before)

then mv -f ".deps/radioaction.Tpo" ".deps/radioaction.Plo"; else rm -f ".deps/radioaction.Tpo"; exit 1; fi
g++ -DHAVE_CONFIG_H -DG_LOG_DOMAIN=\"gtkmm\" -I../../gtk -I../../gtk -I../../pango -I../../pango -I../../atk -I../../atk -I../../gdk -I../../gdk -I../../gtk -I../../gtk -DXTHREADS -D_REENTRANT -DXUSE_MTSAFE_API -I/home/Mike/Desktop/livesupport/usr/include/glibmm-2.4 -I/home/Mike/Desktop/livesupport/usr/lib/glibmm-2.4/include -I/home/Mike/Desktop/livesupport/usr/include/sigc++-2.0 -I/home/Mike/Desktop/livesupport/usr/lib/sigc++-2.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/X11R6/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/include/freetype2 -I/usr/include/freetype2/config -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g -O2 -Wall -MT radioaction.lo -MD -MP -MF .deps/radioaction.Tpo -c radioaction.cc -fPIC -DPIC -o .libs/radioaction.o
../../gtk/gtkmm/radioaction.h:101: error: declaration of 'typedef class Gtk::RadioButtonGroup Gtk::RadioAction::Group'
../../gtk/gtkmm/radioaction.h:88: error: conflicts with previous declaration 'typedef class Gtk::RadioButtonGroup Gtk::RadioAction::Group'
make[7]: *** [radioaction.lo] Error 1
make[7]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5/gtk/gtkmm'
make[6]: *** [all-recursive] Error 1
make[6]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5/gtk/gtkmm'
make[5]: *** [all-recursive] Error 1
make[5]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5/gtk'
make[4]: *** [all] Error 2
make[4]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5/gtk'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5/tmp/gtkmm-2.5.5'
make[1]: *** [tmp/all.stamp] Error 2
make[1]: Leaving directory `/home/Mike/Desktop/livesupport/tools/gtkmm/gtkmm-2.5.5'
make: *** [tmp/tools_setup.stamp] Error 2
Done.

anyone know what i can do to fix this?