FeedError{apiErrorType=FeedError, errorString=FeedError.CANNOT_SPECIFY_ON_SET, fieldPath=operations[0].operand.systemFeedGenerationData.oAuthInfo, fieldPathElements=[FieldPathElement{field=operations, index=0}, FieldPathElement{field=operand}, FieldPathElement{field=systemFeedGenerationData}, FieldPathElement{field=oAuthInfo}], reason=UNKNOWN, trigger=}