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EJB deployment Problem : Compiler -- JDO74046: JDOCodeGenerator.

raminaa niilian
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Hi , thank you for reading my post.I really stocked with this error
I have a very odd problem here.
I create a database table in Mysql
Then i used Netbeans 4.1 to generate a CMP from the table (before this i register the driver and database innetbeans Databses node in runtime window), i did not change any setting
My table has 3 field which one of them is : autoIncrement Integer + Primary ky

then i try to run the enterprise application .
I pressed lovely f11
and it Stoped with error .

here is the error messege :
Deploying application in domain failed; Fatal Error from EJB Compiler -- JDO74046: JDOCodeGenerator: Caught a MappingConversionException loading or creating mapping model for application 'ejblearn' module 'ejblearn-EJBModule': JDO71030: There is no column in table learn which can be used to support the servers implementation of unknown key classes.
; requested operation cannot be completed

The window has the same messege (I should notice that deployment progress monitor shows the same message in red Color)
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