Nautilus crashes

[lietu@MacMini ~]$ nautilus
Initializing nautilus-dropbox 1.4.0
sys:1: Warning: g_object_ref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: invalid uninstantiatable type `(null)' in cast to `GMount'
sys:1: Warning: g_object_unref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: g_value_type_compatible: assertion `G_TYPE_IS_VALUE (src_type)' failed
sys:1: Warning: invalid cast from `NautilusIconCanvasItemAccessible' to `GMount'
Segmentation fault
[lietu@MacMini ~]$ while true; do nautilus; done
Initializing nautilus-dropbox 1.4.0
sys:1: Warning: g_object_ref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: invalid uninstantiatable type `(null)' in cast to `GMount'
sys:1: Warning: g_object_unref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: g_value_type_compatible: assertion `G_TYPE_IS_VALUE (src_type)' failed
Segmentation fault
Initializing nautilus-dropbox 1.4.0
sys:1: Warning: g_object_ref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: invalid uninstantiatable type `<invalid>' in cast to `GMount'
sys:1: Warning: g_object_unref: assertion `G_IS_OBJECT (object)' failed
sys:1: Warning: g_value_type_compatible: assertion `G_TYPE_IS_VALUE (src_type)' failed
/usr/lib64/python2.7/site-packages/gi/types.py:43: Warning: g_object_ref: assertion `G_IS_OBJECT (object)' failed
  return info.invoke(*args, **kwargs)
/usr/lib64/python2.7/site-packages/gi/types.py:43: Warning: invalid uninstantiatable type `<invalid>' in cast to `GMount'
  return info.invoke(*args, **kwargs)
/usr/lib64/python2.7/site-packages/gi/types.py:43: Warning: g_object_unref: assertion `G_IS_OBJECT (object)' failed
  return info.invoke(*args, **kwargs)
/usr/lib64/python2.7/site-packages/gi/types.py:43: Warning: g_value_type_compatible: assertion `G_TYPE_IS_VALUE (src_type)' failed
  return info.invoke(*args, **kwargs)





... if run with strace, it looks like this towards the end:




read(5, "\1\0\0\0\0\0\0\0", 16)         = 8
access("/home/lietu/Documents", F_OK)   = 0
access("/home/lietu/Music", F_OK)       = 0
access("/home/lietu/Pictures", F_OK)    = 0
access("/home/lietu/Videos", F_OK)      = 0
access("/home/lietu/Downloads", F_OK)   = 0
access("/home/lietu/Documents", F_OK)   = 0
access("/home/lietu/Music", F_OK)       = 0
access("/home/lietu/Pictures", F_OK)    = 0
access("/home/lietu/Videos", F_OK)      = 0
access("/home/lietu/Downloads", F_OK)   = 0
stat("sys", 0x7fffd0c74e20)             = -1 ENOENT (No such file or directory)
stat("/usr/share/nautilus-python/extensions/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib/python27.zip/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/plat-linux2/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/lib-tk/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/lib-old/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/lib-dynload/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/site-packages/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/site-packages/PIL/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/site-packages/gst-0.10/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib64/python2.7/site-packages/gtk-2.0/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib/python2.7/site-packages/sys", 0x7fffd0c74e20) = -1 ENOENT (No such file or directory)
stat("/usr/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info/sys", 0x7fffd0c74e20) = -1 ENOTDIR (Not a directory)
write(2, "sys:1: Warning: invalid uninstan"..., 75sys:1: Warning: invalid uninstantiatable type `(null)' in cast to `GMount'
) = 75
--- {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} (Segmentation fault) ---
+++ killed by SIGSEGV +++
Segmentation fault