PRB: "The XML Query Returned Zero Nodes" Error Message When You Run BizTalk Orchestration Schedule (813642)

RESOLUTION

1. Verify that the following are marked as Required by the associated schema:
   • any nodes that the Data page of your XLANG schedule references
   • any nodes that any decision logic in the schedule references
   You can set the Required property on the Reference tab for the node in the BizTalk Editor.
2. Click to select the Validate messages against the specification option in the Message Specification Information dialog box of the XML Communication wizard for the inbound port implementation of your XLANG Schedule. If you want to validate messages against a specification, and those messages are missing any Required nodes, the error message that appears in the application event log states the missing element or attribute. For example, instead of the error message in the "Symptoms" section, you receive an error message similar to the following:

   Date:		1/20/2003
   Time:		2:49:17 PM
   Type:		Warning
   User:		N/A
   Computer:	BIZTALKSERVER
   Source:		XLANG Scheduler
   Category:	WFBinding
   Event ID:	23846
   Description:
   The Message Queuing message was not successfully validated against 
   the schema that was provided. Check the schema and the schema path.
   
   Instance ID: {50AB3E55-3DF8-411A-9149-275F9B23EA60}
   Port name: CommonPO
   Queue path: biztalkserver.biztalk.com\private$\commonpo
   Message type: CommonPO
   Message name: CommonPO
   Required attribute 'Number' is missing.
    
   Error Code = 0x80045d26 : 
   
   XLANG Scheduler Engine Internals Information:
   File: e:\bizet\private\sked\src\runtime\techbind\mq\linda\mqqueue.cpp
   Line: 1214