Hello, I have installed aeroo on my computer with ubuntu 14.04, following the steps of this question, https://www.odoo.com/es_ES/forum/help-1/question/8-0-how-can-i-install-the-official-aeroo-reports-alistek-for-odoo-version-8-solved-76044. Then, I installed the module Product Catalog Aeroo Report with public Category for odoo V8. The installation of the module was succesfull, and the conection test with aeroo-docs was ok, but when I try to print a catalog, I get an error, and I really don't know where is the problem. Some help will be appreciated. The traceback is the next:.

Traceback (most recent call last):

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 530, in _handle_exception

return super(JsonRequest, self)._handle_exception(exception)

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 567, in dispatch

result = self._call_function(**self.params)

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 303, in _call_function

return checked_call(self.db, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/service/model.py", line 113, in wrapper

return f(dbname, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 300, in checked_call

return self.endpoint(*a, **kw)

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 796, in __call__

return self.method(*args, **kw)

File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 396, in response_wrap

response = f(*args, **kw)

File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 940, in call_button

action = self._call_kw(model, method, args, {})

File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 928, in _call_kw

return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 241, in wrapper

return old_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 363, in old_api

result = method(recs, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/addons/product_catalog_aeroo_report/product_catalog.py", line 88, in generate_report

self = self.prepare_report()

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 239, in wrapper

return new_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/addons/product_catalog_aeroo_report_public_categ/product_catalog.py", line 23, in prepare_report

self = super(product_catalog_report, self).prepare_report()

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 239, in wrapper

return new_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/addons/product_catalog_aeroo_report/product_catalog.py", line 71, in prepare_report

[('id', 'child_of', category_ids)]).ids

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 239, in wrapper

return new_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 462, in new_api

result = method(self._model, cr, uid, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/models.py", line 1639, in search

return self._search(cr, user, args, offset=offset, limit=limit, order=order, context=context, count=count)

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 241, in wrapper

return old_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/models.py", line 4621, in _search

query = self._where_calc(cr, user, args, context=context)

File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 241, in wrapper

return old_api(self, *args, **kwargs)

File "/usr/lib/python2.7/dist-packages/openerp/models.py", line 4446, in _where_calc

where_clause, where_params = e.to_sql()

File "/usr/lib/python2.7/dist-packages/openerp/osv/expression.py", line 1256, in to_sql

assert len(stack) == 1

AssertionError