Ubuntu-tweak won't start in Ubuntu 14.04 LTS

Bug #1478469 reported by karsibali on 2015-07-27
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Ubuntu Tweak

Bug Description

I cannot start ubuntu-tweak on my Linux system. My system is a 64 bit Ubuntu.
Here is the output of uname

Linux 3.13.0-58-generic #97-Ubuntu SMP Wed Jul 8 02:56:15 UTC 2015 x86_64 x86_64

When I try to run ubuntu-tweak I get the following error:

compizconfig - Info: Backend : gsettings
compizconfig - Info: Integration : true
compizconfig - Info: Profile : unity

(ubuntu-tweak:13892): Gtk-WARNING **: Theme file for default has no name

(ubuntu-tweak:13892): Gtk-WARNING **: Theme file for default has no directories

Traceback (most recent call last):
  File "/usr/bin/ubuntu-tweak", line 94, in on_startup
    self._window = UbuntuTweakWindow(feature=options.feature, module=options.module, splash_window=splash_window)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/main.py", line 293, in __init__
    tweaks_page = FeaturePage('tweaks')
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/main.py", line 161, in __init__
    self._setting = GSetting('com.ubuntu-tweak.tweak.%s' % feature_name)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/settings/gsettings.py", line 19, in __init__
    self.schema_default = self.default or Schema.load_schema(self.schema_id, self.key)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/settings/common.py", line 129, in load_schema
    tree = etree.parse(open(schema_path))
  File "lxml.etree.pyx", line 3239, in lxml.etree.parse (src/lxml/lxml.etree.c:69955)
  File "parser.pxi", line 1769, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:102257)
  File "parser.pxi", line 1789, in lxml.etree._parseFilelikeDocument (src/lxml/lxml.etree.c:102516)
  File "parser.pxi", line 1684, in lxml.etree._parseDocFromFilelike (src/lxml/lxml.etree.c:101442)
  File "parser.pxi", line 1134, in lxml.etree._BaseParser._parseDocFromFilelike (src/lxml/lxml.etree.c:97069)
  File "parser.pxi", line 582, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:91275)
  File "parser.pxi", line 683, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:92461)
  File "parser.pxi", line 622, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:91757)
lxml.etree.XMLSyntaxError: Opening and ending tag mismatch: default line 33 and key, line 34, column 11
TypeError: can't convert return value to desired type
/usr/bin/ubuntu-tweak:123: Warning: g_value_copy: assertion 'G_IS_VALUE (src_value)' failed
/usr/bin/ubuntu-tweak:123: Warning: g_value_reset: assertion 'G_IS_VALUE (value)' failed
/usr/bin/ubuntu-tweak:123: Warning: g_value_unset: assertion 'G_IS_VALUE (value)' failed

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