444行上的文件/var/www/vendor/composer/ClassLoader.php中没有此类文件或目录

Question

我编写了第一个Composer程序包，但是当我尝试通过添加到Laravel项目中对其进行测试时，收到以下错误：

ErrorException: include(/var/www/vendor/composer/../xxx/register-com-client/src/RegisterServiceProvider.php): failed to open stream: No such file or directory in file /var/www/vendor/composer/ClassLoader.php on line 444

这是我的包裹的composer.json：

{
"name": "xxx/register-com-client",
"description": "",
"type": "library",
"minimum-stability": "dev",
"require": {
    "php": ">=7.0"
},
"autoload": {
    "psr-4": {
        "xxx\\Register_com\\": "src/"
    }
},
"extra": {
    "laravel": {
        "providers": [
            "xxx\\Register_com\\RegisterServiceProvider"
        ]
    }
}

}

在laravel项目中，我这样调用register-com-client中的一个函数：

$registerService = new RegisterService();
$response = $registerService->getDomainProductId($input['sld'], $input['tld']);

我这样在laravel项目中本地链接到我的软件包（在composer.json中）

{
        "type": "path",
        "url": "/Users/dannixxxx/xxx/register-com-client",
        "options": {
            "symlink": true
        }
    }