Flutter 应用程序未在调试模式下启动

Question

我有一个带有调试配置的简单 Flutter 应用程序。在我更改 gradle 配置和其他内容以在发布模式下构建 apk 之后。我根据文档完成了所有配置并且发布构建工作正常。但是现在我无法在调试模式下运行应用程序。它显示这个错误

I/flutter (15809): Observatory server failed to start after 11 tries
I/flutter (15809): Could not start Observatory HTTP server:
I/flutter (15809): SocketException: Failed to create server socket (OS Error: Permission denied, errno = 13), address = 127.0.0.1, port = 0
I/flutter (15809): #0      _NativeSocket.bind (dart:io/runtime/binsocket_patch.dart:545:7)
I/flutter (15809): <asynchronous suspension>
I/flutter (15809): #1      _RawServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1138:10)
I/flutter (15809): #2      _ServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1385:10)
I/flutter (15809): #3      ServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1375:26)
I/flutter (15809): #4      _HttpServer.bind (dart:_http/http_impl.dart:2503:10)
I/flutter (15809): #5      HttpServer.bind (dart:_http:276:19)
I/flutter (15809): #6      Server.startup.poll (dart:vmservice_io/server.dart:352:36)
I/flutter (15809): <asynchronous suspension>
I/flutter (15809): #7      Server.startup (dart:vmservice_io/server.dart:364:23)
I/flutter (15809): <asynchronous suspension>
I/flutter (15809): #8      main (dart:vmservice_io:239:12)
I/flutter (15809):

它显示白屏，没有加载任何内容。

Answer 1

在构建发布版本时，它说如果应用程序不需要它，则删除互联网权限。但是当我们进行开发时，我们必须保持这一点。它需要工作热重载。我添加后

 <uses-permission android:name="android.permission.INTERNET"/>

到清单一切正常