Flutter Emulator 按钮卡在“正在加载”上

如何解决Flutter Emulator 按钮卡在“正在加载”上

我按照他们网站上的文档一步一步安装了 flutter 和 Dart，并且安装成功，也下载到模拟器，如下图所示。但是我选择我的设备来运行项目的按钮卡在“正在加载...”和“正在加载设备...”上。我使用的操作系统是 Ubuntu 20.04。这是我通过终端的 flutter doctor -v 日志。

s@s-K401LB:~$ flutter doctor -v
[✓] Flutter (Channel stable,1.22.6,on Linux,locale en_US.UTF-8)
    • Flutter version 1.22.6 at /home/s/snap/flutter/common/flutter
    • Framework revision 9b2d32b605 (11 days ago),2021-01-22 14:36:39 -0800
    • Engine revision 2f0af37152
    • Dart version 2.10.5

⡿^[[ 
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /home/s/Android/Sdk
    • Platform android-30,build-tools 30.0.3
    • Java binary at: /usr/bin/java
    • Java version OpenJDK Runtime Environment (build
      1.8.0_275-8u275-b01-0ubuntu1~20.04-b01)
    • All Android licenses accepted.

[!] Android Studio (not installed)
    • Android Studio not found; download from
      https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup
      for detailed instructions).

[✓] Connected device (2 available)
    • CLT L29 (mobile)            • WCR0218923007245 • android-arm64 • Android
      10 (API 29)
    • sdk gphone x86 arm (mobile) • emulator-5554    • android-x86   • Android
      11 (API 30) (emulator)

! Doctor found issues in 1 category.
s@s-K401LB:~$ flutter doctor -v

终端：

Android Studio 屏幕截图，显示“正在加载...”、“正在加载设备”上的模拟器列表：

当我点击绿色的运行按钮时：

当我点击加载下拉菜单时：

已安装的模拟器列表：