Acceleo: ecore to Python generator not working -

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i started work acceleo weeks ago. have problem, when try start example ecore-to-python-generator described here: (http://www.acceleo.org/pages/ecore-to-python-generator/en). because generator isn't available in new version of acceleo, downloaded complete eclipse package acceleo 2.7 here (http://www.acceleo.org/pages/download-acceleo).

i did on website. after choosing "ecore python" module, asks ecore model. select "org.acceleo.module.pim.ecore.gen.python". if start generation process (by right-clicking on default.chain file , launch), there problem:

[resource '/org.acceleo.module.pim.ecore.gen.python/default' not exist.]

can tell me, how make simple python code generation?


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