这对我很管用。您必须将android studio更新到最新版本，然后按照以下步骤更新sdk工具:

工具-> SDK管理器 选择Android SDK SDK工具标签 检查以更新可用选项。 按ok键 之后，这个过程将花费你几分钟，完成后，一切都会正常工作。

我的棘手的解决方案是尝试启动另一个模拟器，然后启动这个坏的模拟器。

在我的情况下(一个主256堆是坏的)，我将开始一个主512堆，然后开始一个主256堆

总结一下:

Install and reinstall HAXM 7.5.6 (only available version) under 'Android SDK' settings. Try downloading it manually, even other versions (they don't work with Android SDK), installing it from the Android/Sdk folder, etc. sc query intelhaxm in cmd should show if it is running correctly. Virtualization is enabled in your BIOS and has been tested Made sure the PATH variables are correct (ANDROID_HOME / ANDROID_SDK_ROOT) but NOT (ANDROID_SDK_HOME) to the folder in your settings per Here. Otherwise, you will see EVENTS on the Android Studio splash screen. Try unchecking / rechecking Launch in a tool window in Emulator settings (and even Enable Device Frame in AVD settings) Try rebuilding in several different combinations of android, different phones, etc (but with same levels and packages ... 30 for example) Try Rebooting in several different configurations Make sure all SDK Tools are up-to-date, and even try a fresh install of Android Studio. However, tried removing all of them, and adding them back. Check your space, try to have 25GB maybe or more free Check for Virtual Box, Antivirus Software, etc. Open Android Studio with Administrator privileges

运行在双显示器/坞站上?

A)在不插任何插头的情况下运行模拟器，然后插回显示器!(我知道很奇怪)……或者更好的是…… B)创建一个新的硬件配置文件，它将使您能够将图形:自动更改为软件。

解决此错误的最佳5个选项，avd的模拟器进程被杀死

given option are checkpoints, check it out one by one.
Error Solution Option 1
Possiblity:
HAXM may not installed in System
HAXM - Hardware Accelerated Execution Manager
Solution:
SDK Manager > Check for HAXM installer
install it, if HAXM not installed
=======================================

Error Solution Option 2
Possiblity : 
Low disk size to load Emulator
Latest AVD with API level 30+ required approx 7 GB disk space
Solution:
Free space from disk where AVD is located

=======================================
Error Solution Option 3
Possiblity :
Configured AVD API may not available in SDK Manager
As an Example:
if Emulator with API level 30, same package of API 30 should be installed in SDK

Solution:
Install same version of SDK Platfrom from SDK manager,
as same as Emulator – AVD API

=======================================
Error Solution Option 4
Possiblity :
Configuration error in Old AVD 

Solution:
Recreate AVD with latest available update
Help > check for update, if component Android Emulator Update is available, install it
delete older AVD and create Fresh AVD

=======================================
Error Solution Option 5
Possiblity :
Embedded AVD not properly load with available image

Solution:
Launch AVD as independent component,
After success close it and lauch within Android Studio
Emulator inside Android Studio
=======================================

before apply all of above once restart you System, try it.

有关视频支持的更多帮助，请参阅如何修复AVD被杀死 我想它可能对你有帮助。

如果你将模拟器升级到30+版本并运行mac < 10.15，我会得到同样的错误

如果从命令行运行它，就会看到真正的错误

~/Library/Android/sdk/模拟器-avd - <

emulator: Android emulator version 30.5.3.0 (build_id 7196367) (CL:N/A)
dyld: Library not loaded: /System/Library/Frameworks/IOUSBHost.framework/Versions/A/IOUSBHost

您可以通过以下步骤修复此问题，以升级到Big Sur或降级模拟器。

wget https://dl.google.com/android/repository/emulator-darwin-6885378.zip zip解压emulator-darwin-5395263。 mv ~/图书馆/Android/sdk/模拟器~/Library/Android/ Android/ Android/模拟器 mv模拟器~/图书馆/Android/sdk/模拟器 cp ~/Library/Android/sdk/ previoter /package.xml ~/Library/Android/sdk/ package.xml

检查是否成功:

cd ~ ~ /图书馆/ Android / sdk /模拟器/模拟器- version

28.0.25.0

~ /图书馆/ Android / sdk /模拟器/模拟器-list-avds

源https://groups.google.com/g/flutter-dev/c/uEthfwjZBAQ/m/HSFqTgYsAgAJ

2021年4月8日编辑:我更新了模拟器链接到评论中提到的新版本

我试了上面所有的答案，没有一个管用。我最终通过以下方法解决了这个问题:

开放SDK管理器 在SDK平台下，取消选中所有选中的包，点击ok 打开AVD管理器，点击虚拟设备旁边的下载按钮 启动设备，这应该能够解决问题 重新打开SDK管理器并重新检查您想要的平台

这就是! !希望这对你也有帮助，干杯