arm-api/resources/views/common/errors.blade.php

@if (count($errors) > 0)
    <!-- 表單錯誤清單 -->
    <div class="alert alert-danger alert-dismissible" role="alert">
        <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <strong>Oops!!</strong>
        <br />
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif