相关疑难解决方法(0)

我开始将我的 Flutter 应用程序移植到macos Desktop。用户界面开始很好。但是，一旦应用程序进行网络调用，它就会立即失败并显示Connection failed (OS Error: Operation not allowed)。

运行单行：

final response = await http.get('https://jsonplaceholder.typicode.com/posts/1');

失败：

Unhandled Exception: SocketException: Connection failed (OS Error: 
    Operation not permitted, errno = 1),
         address = jsonplaceholder.typicode.com, port = 443
#0      IOClient.send (package:http/src/io_client.dart:33:23)

macos 构建目标来自此处的Google 示例。

Flutter (Channel master, v1.9.8-pre.108)