Laravel RedirectResponse with()方法不起作用

I have a registration form which after pressing 'submit' button shows some messages - if passed password is too short or if registration is successful. For errors I use withErrors() method, which works correctly. When I'm trying to pass other variable to session using either

return Redirect::to('login')->with('success', [/**/])

or

return Redirect::to('login')->withSuccess([/**/])

variables in my view seem unset.

If you want to pass messages with session you can follow this:

In Controller:

Session::flash('message', 'error message here......');

In view:

{{Session::get("message")}}

This one show the error message .Try this.thanks.

you can set success message in session like this in controller..

\Session::flash('flash_message', 'registration is successful.');
return redirect("/successPage");

and show error message in view like this..

{{ Session::get('flash_message')}}