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Home » Modeling » M2T (model-to-text transformation) » [Acceleo] The type of the first parameter of the main template named 'generateElement' is a proxy(Exception Thrown)
[Acceleo] The type of the first parameter of the main template named 'generateElement' is a proxy [message #1434908] Tue, 30 September 2014 15:52 Go to next message
Eclipse UserFriend
Here is the exception: Exception in thread "main" org.eclipse.acceleo.engine.AcceleoEvaluationException: The type of the first parameter of the main template named 'generateElement' is a proxy.
at org.eclipse.acceleo.engine.service.AcceleoService.doGenerate(AcceleoService.java:632)
at org.eclipse.acceleo.engine.service.AbstractAcceleoGenerator.generate(AbstractAcceleoGenerator.java:211)
at org.eclipse.acceleo.engine.service.AbstractAcceleoGenerator.generate(AbstractAcceleoGenerator.java:172)
at org.eclipse.acceleo.engine.service.AbstractAcceleoGenerator.doGenerate(AbstractAcceleoGenerator.java:159)


I have created a simple example showing the problem. Its attached.
  • Attachment: example.zip
    (Size: 146.83KB, Downloaded 219 times)
Re: [Acceleo] The type of the first parameter of the main template named 'generateElement' is a prox [message #1435311 is a reply to message #1434908] Wed, 01 October 2014 05:56 Go to previous messageGo to next message
Eclipse UserFriend
Hi,

You may have an issue with the way your metamodel is registered/loaded during the build or during the execution of your generator.
You should place a breakpoint in AcceleoService to see the state of your package registry there. Otherwise, you could also put a breakpoint in the constructor of the launcher (the class extending AbstractAcceleoGenerator) to see if there are proxies in the module loaded. If there are any, you should compare the URI of the parameter type expected and the NsURI of your metamodel.

Regards,

Stephane Begaudeau, Obeo
Re: [Acceleo] The type of the first parameter of the main template named 'generateElement' is a prox [message #1435561 is a reply to message #1435311] Wed, 01 October 2014 13:26 Go to previous message
Eclipse UserFriend
I have take screen shots and outlined the process I used to create my example. Please see attached for details. The short is the example provided is focused on demonstrating the issue. I have walked through the code and found no evidence that my models are not registered correctly.

can you direct me to a specific variable I should be testing?

Please see attached and thank you for your help.

Robert
  • Attachment: Stephane.docx
    (Size: 212.92KB, Downloaded 298 times)
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