python - Getting TypeError: type() argument 1 must be string, not None -


i getting error while installing customized odoo module.

here full traceback getting. when clicking install button on module kanban view.

traceback (most recent call last):   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 518, in _handle_exception     return super(jsonrequest, self)._handle_exception(exception)   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 539, in dispatch     result = self._call_function(**self.params)   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 295, in _call_function     return checked_call(self.db, *args, **kwargs)   file "/home/software/ws/bma8_dev/odoo/openerp/service/model.py", line 113, in wrapper     return f(dbname, *args, **kwargs)   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 292, in checked_call     return self.endpoint(*a, **kw)   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 759, in __call__     return self.method(*args, **kw)   file "/home/software/ws/bma8_dev/odoo/openerp/http.py", line 388, in response_wrap     response = f(*args, **kw)   file "/home/software/ws/bma8_dev/odoo/openerp/addons/web/controllers/main.py", line 953, in call_button     action = self._call_kw(model, method, args, {})   file "/home/software/ws/bma8_dev/odoo/openerp/addons/web/controllers/main.py", line 941, in _call_kw     return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)   file "/home/software/ws/bma8_dev/odoo/openerp/api.py", line 237, in wrapper     return old_api(self, *args, **kwargs)   file "/home/software/ws/bma8_dev/odoo/openerp/addons/base/module/module.py", line 450, in button_immediate_install     return self._button_immediate_function(cr, uid, ids, self.button_install, context=context)   file "/home/software/ws/bma8_dev/odoo/openerp/api.py", line 237, in wrapper     return old_api(self, *args, **kwargs)   file "/home/software/ws/bma8_dev/odoo/openerp/addons/base/module/module.py", line 498, in _button_immediate_function     registry = openerp.modules.registry.registrymanager.new(cr.dbname, update_module=true)   file "/home/software/ws/bma8_dev/odoo/openerp/modules/registry.py", line 346, in new     openerp.modules.load_modules(registry._db, force_demo, status, update_module)   file "/home/software/ws/bma8_dev/odoo/openerp/modules/loading.py", line 363, in load_modules     loaded_modules, update_module)   file "/home/software/ws/bma8_dev/odoo/openerp/modules/loading.py", line 263, in load_marked_modules     loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)   file "/home/software/ws/bma8_dev/odoo/openerp/modules/loading.py", line 158, in load_module_graph     models = registry.load(cr, package)   file "/home/software/ws/bma8_dev/odoo/openerp/modules/registry.py", line 148, in load     model = cls._build_model(self, cr)   file "/home/software/ws/bma8_dev/odoo/openerp/models.py", line 659, in _build_model     cls = type(cls._name, (cls,), attrs) typeerror: type() argument 1 must string, not none 

can 1 know wrong ?

you missed required module descriptor on model.

try _name or _inherit on model class.

it resolve kind of error.


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