I get the following error while trying to install my custom addon module on odoo 9.0, what should I do to fix this?
Odoo Server Error
Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 643, in _handle_exception return super(JsonRequest, self)._handle_exception(exception) File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 680, in dispatch result = self._call_function(**self.params) File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 316, in _call_function return checked_call(self.db, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/openerp/service/model.py", line 118, in wrapper return f(dbname, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 309, in checked_call result = self.endpoint(*a, **kw) File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 959, in __call__ return self.method(*args, **kw) File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 509, in response_wrap response = f(*args, **kw) File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 896, in call_button action = self._call_kw(model, method, args, {}) File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 884, 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 250, in wrapper return old_api(self, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/openerp/addons/base/module/module.py", line 459, in button_immediate_install return self._button_immediate_function(cr, uid, ids, self.button_install, context=context) File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 250, in wrapper return old_api(self, *args, **kwargs) File "/usr/lib/python2.7/dist-packages/openerp/addons/base/module/module.py", line 533, in _button_immediate_function registry = openerp.modules.registry.RegistryManager.new(cr.dbname, update_module=True) File "/usr/lib/python2.7/dist-packages/openerp/modules/registry.py", line 385, in new openerp.modules.load_modules(registry._db, force_demo, status, update_module) File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 338, in load_modules loaded_modules, update_module) File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 237, in load_marked_modules loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks) File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 156, in load_module_graph _load_data(cr, module_name, idref, mode, kind='data') File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 98, in _load_data tools.convert_file(cr, module_name, filename, idref, mode, noupdate, kind, report) File "/usr/lib/python2.7/dist-packages/openerp/tools/convert.py", line 852, in convert_file convert_xml_import(cr, module, fp, idref, mode, noupdate, report) File "/usr/lib/python2.7/dist-packages/openerp/tools/convert.py", line 926, in convert_xml_import relaxng.assert_(doc) File "lxml.etree.pyx", line 3375, in lxml.etree._Validator.assert_ (src/lxml/lxml.etree.c:166410) AssertionError: Element openerp has extra content: data, line 3