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I get the following error:

Failed to look for applications online

GDBus.Error:org.freedesktop.DBus.Python.xdg.Exceptions.ParsingError: Traceback (most recent call last):
      File "/usr/lib/python2.7/dist-packages/defer/", line 489, in _inline_callbacks
    result = gen.send(result)
      File "/usr/lib/python2.7/dist-packages/sessioninstaller/", line 1030, in _install_mime_types
      File "/usr/lib/python2.7/dist-packages/xdg/", line 33, in __init__
      File "/usr/lib/python2.7/dist-packages/xdg/", line 42, in parse
    IniFile.parse(self, file, ["Desktop Entry", "KDE Desktop Entry"])
      File "/usr/lib/python2.7/dist-packages/xdg/", line 81, in parse
    raise ParsingError("Invalid line: " + line, filename)
    ParsingError: ParsingError in file '/usr/share/app-install/desktop/workrave:workrave.desktop', Invalid line: - RSI (Repetitive Strain Injury) oraz wspomaga rekonwalescencj\u0119"

Any ideas?

This happens when I right click a program, open with, other application..., find applications on-line. then this error pops up.

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What exact command did you run? Please add it to your question. Thanks. – Kevin Bowen Jun 15 '13 at 1:46
duplicates?… – Kevin Bowen Jun 15 '13 at 2:06
You should report this as a bug. Use ubuntu-bug from command line after the error happens – DaboRoss Jun 15 '13 at 4:11

remove /usr/share/app-install/desktop/workrave:workrave.desktop should solve the problem, for me it solved ;)

sudo rm /usr/share/app-install/desktop/workrave:workrave.desktop

Source from here:

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