laravel - Laravel 调试栏会话消息未显示

Question

输出消息工作正常，但调试栏会话没有它们

if (empty($item)) {
  return back()
    ->withErrors(['msg' => "post id => {$id} not found"])
    ->withInput();
}

调试栏

• laravel 5.8
• debugbar 7.3.1