Current set of fragments is bad XML
Current set of fragments is invalid
Length of the two fragment sets does not match
New set of fragments is bad XML
New set of fragments is invalid
Operation succeeded.
Trying to modify or remove a read-only tag
Trying to remove a required tag
General error sink if none of the others applies.
Possible return values of the gupnp_didl_lite_object_apply_fragments() call.