**Try This**
    
    Try This Code 
    --- Controller ---

    return redirect('list')->with('message', 'Successfully');
    return redirect('list');
   
  ----  Blade view ------
    @if(session()->has('message'))
        <div class="alert alert-success">
            {{ session()->get('message') }}
        </div>
    @endif

    **Try This**
    
    Try This Code 
    --- Controller ---

    return redirect('list')->with('message', 'Successfully');
    return redirect('list');
   
  ----  Blade view ------
    @if(session()->has('message'))
        <div class="alert alert-success">
            {{ session()->get('message') }}
        </div>
    @endif

在叶片

 @if(Session::has('success'))

    <div class="alert alert-success" id="alert">
        <strong>Success:</strong> {{Session::get('success')}}
    </div>

@elseif(session('error'))
    <div class="alert alert-danger" id="alert">
        
        <strong>Error:</strong>{{Session::get('error')}}
    </div>
@endif

在控制器 成功的

 return redirect()->route('homee')->with('success','Successfully Log in '); 

为错误

 return back()->with('error',"You are not able to access");

对于拉拉维尔 5.5+

控制器:

return redirect()->back()->with('success', 'your message here');

叶:

@if (Session::has('success'))
    <div class="alert alert-success">
        <ul>
            <li>{{ Session::get('success') }}</li>
        </ul>
    </div>
@endif

在Laravel 5.4中，以下内容对我有用:

return back()->withErrors(['field_name' => ['Your custom message here.']]);

Try

return Redirect::back()->withErrors(['msg' => 'The Message']);

在视图中调用这个

@if($errors->any())
<h4>{{$errors->first()}}</h4>
@endif