title: flutter failed to connect android device and off application on iPhone simulator
body: <p>when I call debug mode on an android device</p>
  <pre><code>Error connecting to the service protocol: failed to connect to http://127.0.0.1:60027/bncnE_T-mWw=/
  </code></pre>
  <p>and also asks for permission to wifi, but through a notification, if I give permission, it shows a white screen and the same error</p>
  <p>but everything starts quietly if you build the apk and install through it</p>
  <p>with an iPhone simulator, the application starts and immediately closes, and in the android studio it is written that the connection is taking too long, it may have crashed</p>
  <p>flutter doctor:</p>
  <pre><code>    [✓] Flutter (Channel stable, 2.5.0, on Mac OS X 10.15.7 19H114 darwin-x64, locale ru-RU)
      • Flutter version 2.5.0 at /Users/daniil/Documents/flutter
      • Upstream repository https://github.com/flutter/flutter.git
      • Framework revision 4cc385b4b8 (6 days ago), 2021-09-07 23:01:49 -0700
      • Engine revision f0826da7ef
      • Dart version 2.14.0
  
  [✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
      • Android SDK at /Users/daniil/Library/Android/sdk
      • Platform android-31, build-tools 31.0.0
      • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
      • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)
      • All Android licenses accepted.
  
  [✓] Xcode - develop for iOS and macOS
      • Xcode at /Applications/Xcode.app/Contents/Developer
      • Xcode 12.4, Build version 12D4e
      • CocoaPods version 1.10.1
  
  [✓] Chrome - develop for the web
      • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
  
  [✓] Android Studio (version 4.2)
      • Android Studio at /Applications/Android Studio.app/Contents
      • Flutter plugin can be installed from:
         https://plugins.jetbrains.com/plugin/9212-flutter
      • Dart plugin can be installed from:
         https://plugins.jetbrains.com/plugin/6351-dart
      • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)
  
  [✓] VS Code (version 1.58.0)
      • VS Code at /Applications/Visual Studio Code.app/Contents
      • Flutter extension version 3.24.0
  
  [✓] Connected device (3 available)
      • Redmi Note 8T (mobile) • 19645373                             • android-arm64  • Android 10 (API 29)
      • iPhone 8 Plus (mobile) • 06EE905E-8A76-45D5-A844-8DCDF2EEA3CA • ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-4 (simulator)
      • Chrome (web)           • chrome                               • web-javascript • Google Chrome 93.0.4577.63
  
  • No issues found!
  </code></pre>