Laravel 4 响应：：下载->；误差500

在Laravel 4.0中，我试图创建一个pdf的（强制）下载链接，该链接位于

public/assets/files/cvde.pdf

---

视图：

<a href="curry/cvde">deutsch</a>

Route::get('curry/{file}', 'HomeController@downloadCV');

public function downloadCV($file) {
    return Response::download(public_path() . '/assets/files/' . $file . '.pdf', array(
            'Content-Type'=>'application/octet-stream',
            'Content-Disposition'=>'attachment; filename="' . $file . '.pdf"'
        )
    );
}

控制器方法：

<a href="curry/cvde">deutsch</a>

Route::get('curry/{file}', 'HomeController@downloadCV');

public function downloadCV($file) {
    return Response::download(public_path() . '/assets/files/' . $file . '.pdf', array(
            'Content-Type'=>'application/octet-stream',
            'Content-Disposition'=>'attachment; filename="' . $file . '.pdf"'
        )
    );
}

我收到一个500错误，浏览器指向

public/curry/cvde

---

我做错了什么？

首先，您是否手动检查文件是否可访问？其次，我认为您的请求格式错误：

/**
     * Create a new file download response.
     *
     * @param  SplFileInfo|string  $file
     * @param  string  $name
     * @param  array   $headers
     * @return \Symfony\Component\HttpFoundation\BinaryFileResponse
     */
    public static function download($file, $name = null, array $headers = array())
    {
            ....
    }