# dpkg --debug=77777 --configure -a
D000040: checking dependencies of language-selector-common (- <none>)
D000400:   checking group ...
D000400:     checking possibility  -> python
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000400:   checking group ...
D000400:     checking possibility  -> python
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000400:   checking group ...
D000400:     checking possibility  -> python-central
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000400:   checking group ...
D000400:     checking possibility  -> iso-codes
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000400:   checking group ...
D000400:     checking possibility  -> python-apt
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000400:   checking group ...
D000400:     checking possibility  -> python-dbus
D000400:       is installed, ok and found
D000400:     found 3
D000400:   found 3 matched 0 possfixbytrig -
D000040: ok 2 msgs >><<
D000040:     checking Breaks
Setting up language-selector-common (0.6.7) ...
D020000: trigproc_activate_packageprocessing pkg=language-selector-common
D000002: fork/exec /var/lib/dpkg/info/language-selector-common.postinst ( configure 0.6.6 )
dpkg: error processing language-selector-common (--configure):
 subprocess installed post-installation script returned error exit status 2
D020000: post_script_tasks - ensure_diversions; trig_incorporate
D010000: trigproc_enqueue_deferred pend=python-central
D010000: trigproc_run_deferred
D010000: trigproc python-central
D010000: check_triggers_cycle pnow=python-central
D020000: check_triggers_cycle pnow=python-central first
Processing triggers for python-central ...
D000002: fork/exec /var/lib/dpkg/info/python-central.postinst ( triggered cleanup-pkgprepare-updates )
D020000: post_postinst_tasks_core - trig_incorporate
Errors were encountered while processing:
 language-selector-common