If like me, you performed a yum update this morning and your gnome-terminal has stopped working and instead is doing a lot of this:
(gnome-terminal:2274): Gdk-CRITICAL **: gdk_screen_get_number: assertion `GDK_IS_SCREEN (screen)’ failed
gnome-terminal: symbol lookup error: gnome-terminal: undefined symbol: vte_terminal_set_opacity

This is probably because you were trying out aiglx and you’ve removed the aiglx repo.

Try this:
rpm -e gnome-terminal vte –nodeps ; yum install gnome-terminal

The tricky part was figuring out why it’d happened.

Thanks to various people in #fedora for helping with this one!