gives error everytime i start up

[James Ramsay]

When i try to use the script in terminal it gives me this output:

 jack@jack-Lenovo-B570:~$ '/usr/share/session-migration/scripts/install-default-webapps-in-launcher.py'

** (process:3029): WARNING **: (../../gi/pygi-marshal-from-py.c:641):_pygi_marshal_from_py_basic_type: runtime check failed: (transfer == GI_TRANSFER_NOTHING)
TypeError: Pointer assignment is restricted to integer values. See: https://bugzilla.gnome.org/show_bug.cgi?id=683599

** (process:3029): WARNING **: (../../gi/pygi-marshal-from-py.c:641):_pygi_marshal_from_py_basic_type: runtime check failed: (transfer == GI_TRANSFER_NOTHING)
TypeError: Pointer assignment is restricted to integer values. See: https://bugzilla.gnome.org/show_bug.cgi?id=683599

** (process:3029): WARNING **: (../../gi/pygi-marshal-from-py.c:641):_pygi_marshal_from_py_basic_type: runtime check failed: (transfer == GI_TRANSFER_NOTHING)
TypeError: Pointer assignment is restricted to integer values. See: https://bugzilla.gnome.org/show_bug.cgi?id=683599

(process:3029): GLib-GIO-ERROR **: The mapping function given to g_settings_get_mapped() for key 'favorites' in schema 'com.canonical.Unity.Launcher' returned FALSE when given a NULL value.
Trace/breakpoint trap (core dumped)
jack@jack-Lenovo-B570:~$

It crashes every time it boots and when i run it in terminal. I am on ubuntu 13.10 updated today