Php laravel从路由返回了无效的JSON。可能引发了异常？

这是我对存储功能的测试

/** @test */
public function storeTest()
{
    $this->be($this->user);
    $response = $this->json('POST', '/client/ocp/profile/247/route-', [
        'name'       => 'Test store',
        'speed'      => 4.5,
        'created_by' => $this->user->id,
        'client_id'  => '262',

    ]);
    $response
        ->seeStatusCode(302)
        ->seeJson(['status' => 'OK']);

}

当我运行它时，我得到了这个错误

Invalid JSON was returned from the route. Perhaps an exception was thrown?

我尝试添加此标题以解决问题
['X-request-With'=>'XMLHttpRequest'] 但这并不能解决问题

---

我如何解决这个问题？

你在构建无效的json你是什么意思？你能展示一下实际返回json的

Route

或controller方法吗？这是控制器，这是Route | | POST | client/{clientAlias}/page/{pageId}/routData client。{clientAlias}.profile.{pageId}.routData.store | App\Http\Controllers\RouteDataController@store | |