form redirect not work!

Hello,
i install CI4 and i have form login . after submit the redirect page display me error:
 Controller or its method is not found: App\Controllers\Admin::login

but on router i have:
$routes->get('/admin/login', 'Users::login');

Why?!! where is the error?
and the strange thing when i write url on navigator the page opened!

please help is urgent!!

You should omit the / from your get.
https://codeigniter.com/user_guide/incom...l#examples

You should omit the / from your get.
https://codeigniter.com/user_guide/incom...l#examples

thanks is help me