Hello ,

I am getting this error while installing "oerp_no_phoning_home" on OpenERP v8 in my Ubuntu Server. I changed the owership to "openerp"and the access permission to 775, but still getting the error. Can anyone help me? 

Thank You.

Here is the Error message

Traceback (most recent call last): File "/opt/openerp/server/openerp/http.py", line 470, in dispatch result = self._call_function(**self.params) File "/opt/openerp/server/openerp/http.py", line 294, in _call_function return checked_call(self.db, *args, **kwargs) File "/opt/openerp/server/openerp/service/model.py", line 113, in wrapper return f(dbname, *args, **kwargs) File "/opt/openerp/server/openerp/http.py", line 291, in checked_call return self.endpoint(*a, **kw) File "/opt/openerp/server/openerp/http.py", line 638, in __call__ return self.method(*args, **kw) File "/opt/openerp/server/openerp/http.py", line 337, in response_wrap response = f(*args, **kw) File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 1246, in call_button action = self._call_kw(model, method, args, {}) File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 1234, in _call_kw return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs) File "/opt/openerp/server/openerp/addons/base/module/module.py", line 428, in button_immediate_install return self._button_immediate_function(cr, uid, ids, self.button_install, context=context) File "/opt/openerp/server/openerp/addons/base/module/module.py", line 479, in _button_immediate_function registry = openerp.modules.registry.RegistryManager.new(cr.dbname, update_module=True) File "/opt/openerp/server/openerp/modules/registry.py", line 299, in new openerp.modules.load_modules(registry._db, force_demo, status, update_module) File "/opt/openerp/server/openerp/modules/loading.py", line 339, in load_modules loaded_modules, update_module) File "/opt/openerp/server/openerp/modules/loading.py", line 243, in load_marked_modules loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks) File "/opt/openerp/server/openerp/modules/loading.py", line 176, in load_module_graph _load_data(cr, module_name, idref, mode, kind='data') File "/opt/openerp/server/openerp/modules/loading.py", line 117, in _load_data tools.convert_file(cr, module_name, filename, idref, mode, noupdate, kind, report) File "/opt/openerp/server/openerp/tools/convert.py", line 968, in convert_file convert_xml_import(cr, module, fp, idref, mode, noupdate, report) File "/opt/openerp/server/openerp/tools/convert.py", line 1054, in convert_xml_import obj.parse(doc.getroot()) File "/opt/openerp/server/openerp/tools/convert.py", line 921, in parse self._tags[rec.tag](self.cr, rec, n) File "/opt/openerp/server/openerp/tools/convert.py", line 897, in _tag_template return self._tag_record(cr, record, data_node) File "/opt/openerp/server/openerp/tools/convert.py", line 841, in _tag_record f_val = self.id_get(cr, f_ref) File "/opt/openerp/server/openerp/tools/convert.py", line 902, in id_get res = self.model_id_get(cr, id_str) File "/opt/openerp/server/openerp/tools/convert.py", line 911, in model_id_get return model_data_obj.get_object_reference(cr, self.uid, mod, id_str) File "/opt/openerp/server/openerp/addons/base/ir/ir_model.py", line 909, in get_object_reference return self.xmlid_lookup(cr, uid, "%s.%s" % (module, xml_id))[1:3] File "/opt/openerp/server/openerp/tools/cache.py", line 21, in lookup r = self.lookup(self2, cr, *args, **argv) File "/opt/openerp/server/openerp/tools/cache.py", line 49, in lookup value = d[key] = self.method(self2, cr, *args) File "/opt/openerp/server/openerp/addons/base/ir/ir_model.py", line 867, in xmlid_lookup raise ValueError('External ID not found in the system: %s' % (xmlid)) ParseError: "External ID not found in the system: web.assets_backend" while parsing None:20, near <data name="oerp_no_phoning_home assets"> <xpath expr="." position="inside"> <script type="text/javascript" src="/oerp_no_phoning_home/static/src/js/announcement.js"/> </xpath> </data>