Catalog Generation doesn't seem to have a type specified for export

[mykelalvis]

When I select create catalog of books from the menu, I'm unable to select an output type. OK is active even without selecting a type, so I can proceed forward which rewards me with :

ERROR: Conversion Error: <b>Failed</b>: Generate catalog

Generate catalog
Traceback (most recent call last):
  File "/tmp/init.py", line 48, in <module>
  File "/home/kovid/build/calibre/src/calibre/utils/ipc/worker.py", line 99, in main
  File "/home/kovid/build/calibre/src/calibre/gui2/convert/gui_conversion.py", line 59, in gui_catalog
AttributeError: 'NoneType' object has no attribute 'run'

[mykelalvis]

My installation was on Fedora 12, although I use the generic installer to stay on the latest version.

[kovidgoyal]

What do you mean you are unable to select an output type? There a box with the list of all possible output types.

[mykelalvis]

Replying to kovidgoyal:

What do you mean you are unable to select an output type? There a box with the list of all possible output types.

The dropdown for Catalog format is present and appears to be an active control, but doesn't respond to mouse or keyboard input so it appears to have no options applied to it.

[kovidgoyal]

Fixed in branch trunk. The fix will be in the next release.