您需要添加错误中提到的Info。
一个简单而强大的解决方案是将其添加到App\Http\Controller::class：

<?php

namespace App\Http\Controllers;

use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Routing\Controller as BaseController;
use OpenApi\Attributes as OA;


#[OA\Info(title: "My First API", version: "0.1",)]

class Controller extends BaseController
{
    use AuthorizesRequests, ValidatesRequests;
}

这将确保Info也被添加到所有请求中。
然后，您可以轻松地添加PathItem，例如App\Http\Controller\Api\HeartbeatController::class：

<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use OpenApi\Attributes as OA;

class HeartbeatController extends Controller
{
    #[OA\Get(
        path: '/heartbeat',
        responses: [
            new OA\Response(response: '200', description: 'API is running', content: new OA\JsonContent(example: ['status' => 'ok', 'message' => 'API is running']))
        ],
    )]
    public function __invoke(): \Illuminate\Http\JsonResponse
    {
        return response()->json([
            'status' => 'ok',
            'message' => 'API is running',
        ]);
    }
}