Password field is empty when using wp_signon();

I know this question has been asked a while ago but I’d drop my answer which might help someone out there who is having same issue.

The reason why you got the ERROR: The password field is empty. is because the crediential array key for the password is incorrect. In your code you have the key as user_pass but it needs to be user_password as stated here.

This portion of your code

$creds = array(

    'user_login' => $user->user_login,
    'user_pass'  => $user_pass_login

 );

needs to be:

 $creds = array(

    'user_login'     => $user->user_login,
    'user_password'  => $user_pass_login

  );