Invalid Request Format Error

The Invalid Request Format error is issued in the following situation:

• (<method name>) method has an invalid Request Format property. Either change it, or remove the input parameters from the method

  You have an invalid value set in the 'Request Format' property of a REST API method, or you don't have any value set at all.

Double-click on the error line to take you directly to the REST API method's 'Request Format' property where the problem was detected.