ORA Database Error Messages ORA-13417: null or invalid layerNumber parameter August 13, 2015 mpbod ORA-13417: null or invalid layerNumber parameter Cause: The layerNumber parameter was null or out of scope. Action: Specify a valid layerNumber parameter. Back to previous menu Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)