Scratch crashes whenever I try to open it

[Markus Klyver]

The program crashes when I am trying to open it. Installed it via dpkg using the "scratch_1.0-0~293~oneiric1_amd64.deb"-file (compiled for oneiric). Running 12.04 .2 using 3.5.0-25-generic. linux-headers-package is installed. Output from terminal (using Compiz as WM and Unity as DE):
markus@testserver:~$ scratch &
[1] 4026
markus@testserver:~$ [INFO 17:40:40.336221] [Application:74] Scratch version: 1.0
[INFO 17:40:40.338237] [Application:76] Kernel version: 3.5.0-25-generic
[DEBUG 17:40:40.338889] [Settings:155] Loading settings from schema 'org.elementary.Scratch.SavedState'
[DEBUG 17:40:40.344346] [Settings:155] Loading settings from schema 'org.elementary.Scratch.Settings'
[DEBUG 17:40:40.361681] [Settings:242] Unsupported settings type 'GStrv' for key 'plugins-enabled' in schema 'org.elementary.Scratch.Settings'
[DEBUG 17:40:40.371872] [Settings:155] Loading settings from schema 'org.elementary.Scratch.Services'
Arg set: (null)
[DEBUG 17:40:40.393271] [Gtk] Connecting to session manager
[FATAL 17:40:40.478601] [Gtk] gtk_accel_label_set_accel_closure: assertion `gtk_accel_group_from_accel_closure (accel_closure) != NULL' failed
[FATAL 17:40:40.484042] Scratch will not function properly.
[WARN 17:40:40.485483] [Gtk] Theme parsing error: <unknown>:6:31: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485576] [Gtk] Theme parsing error: <unknown>:6:35: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485643] [Gtk] Theme parsing error: <unknown>:6:37: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485734] [Gtk] Theme parsing error: <unknown>:18:32: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485800] [Gtk] Theme parsing error: <unknown>:18:38: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485871] [Gtk] Theme parsing error: <unknown>:19:31: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485935] [Gtk] Theme parsing error: <unknown>:19:35: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.485998] [Gtk] Theme parsing error: <unknown>:19:37: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.486089] [Gtk] Theme parsing error: <unknown>:25:34: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.486154] [Gtk] Theme parsing error: <unknown>:25:36: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.486223] [Gtk] Theme parsing error: <unknown>:26:31: Not using units is deprecated. Assuming 'px'.
[WARN 17:40:40.537183] [GLib-GObject] specified class size for type `ScratchWidgetsScratchWelcome' is smaller than the parent type's `GraniteWidgetsWelcome' class size
[FATAL 17:40:40.537274] [GLib] g_once_init_leave: assertion `result != 0' failed
[FATAL 17:40:40.537328] Scratch will not function properly.
[FATAL 17:40:40.537397] [GLib-GObject] g_object_new: assertion `G_TYPE_IS_OBJECT (object_type)' failed
[FATAL 17:40:40.537449] Scratch will not function properly.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: scratch 1.0-0~293~oneiric1
ProcVersionSignature: Ubuntu 3.5.0-25.39~precise1-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Wed Apr 17 17:38:35 2013
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
SourcePackage: scratch
UpgradeStatus: No upgrade log present (probably fresh install)