Gstreamer warning

I am using the solution from Uridecodebin with filesink.

The solution is working fine but there is a Gstreamer warning message -

g_object_get: assertion ‘G_IS_OBJECT (object)’ failed category:15

This is not a blocker but is unnecessarily filling up log file. Is there any way I can eliminate this warning?

This is a general gstreamer issue. Can you try to find the solution in other web resource?