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Stephen W. Thomas BizTalk Blog 100% Pure BizTalk

Recently I was testing a BizTalk map inside Visual Studios.  The input schema was auto generated using the SQL Adapter and the output was a simple text file.  I was using a sample file provided to me from a past generation from the schema (or so I thought) to test the map. 

 

When I was testing, I keep getting a blank file as output and a strange error.  The error was: Native serialization error: Root element is missing. 

 

I had both input and output validation turned on and the input sample file was passing validation.  To confirm this, I took the schema and sample file and confirmed it validated using Visual Studios. 

 

Since I was not having much luck testing inside Visual Studios, I decided to set up a send & receive port and test the map through BizTalk to see if I could get different result.  This time, I got a subscription not found error.

 

Odd, since the schema and maps are all deployed.  I check the message that was suspended and noticed it was not mapped; my original message was published and suspended. 

 

This could only mean the message type was wrong - somehow.  So I took a closer look at the namespace in the sample message.  It was slightly off!  I corrected the namespace in the sample file and everything worked fine.

 

Overall, the moral of the story is three fold:

 

1.          Schema Validation inside BizTalk DOES NOT validate namespace; at least it doesn’t if there is only one.

2.          When you get a strange mapping error with no output, check your namespace!

3.          Use extreme caution when typing in the namespace fields when using the SQL Adapter.  Evidently in a past test the namespace was typed incorrectly.  When the SQL Schema was auto generated, this wrong schema was use to make the sample file I was using.

 

This took me over an hour to figure out so I guess I’m getting rusty at testing BizTalk maps.  Hope this helps someone else out down the road.

 

Posted on Tuesday, August 15, 2006 10:01 PM | Back to top

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