这招对我很管用:

工具-> SDK管理器-> SDK工具(选项卡)->取消选择“Android模拟器”-> OK

现在，当你试图运行你的应用程序，或从AVD管理器启动设备时，它会给出“安装模拟器”错误->单击确定。 这将自动下载正确的版本。

在Android Studio Go to Help ->显示浏览器中的日志 尝试再次运行模拟器的错误如下:

handleCpuAcceleration:特征检查hvf 无法添加库vulkan-1.dll:失败 无法添加库vulkan-1.dll:失败

然后安装Microsoft VS Code，转到下面的路径

C:\Users<User>\AppData\Local\Programs\Microsoft VS Code

复制vulkan-1.dll并粘贴到下面的路径

C: \用户<用户> \ AppData \本地\ Android模拟器\ \ lib64

对我来说，这些解决方案是有效的

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。

去工具>android>sdkmanager和更新模拟器和安装相关的API级别。这对我很有效

这个错误非常普遍，这种症状可能是由于一百万个完全不同的问题中的任何一个造成的。 你要做的是找到更多关于正在发生的事情的信息，这样你就不会看起来像一只瞎鸡在啄食令人作呕的石头。 因此，让我们得到调试步骤:

first thing is to find the logs of Android studio. In doubt, stackoverflow already has a section to help you How to find the logs on android studio?. The text file should be named: "idea.log". You can open it with notepad, but only open it after android studio is closed (in windows 10). There will be a lot of events inside. Search by "manager.EmulatorProcessHandler" and the last date that you had the error. A good trick to facilitate your life, after having found the log file, is to close Android studio: delete the log file; reopen android studio and retry to open the emulator. The log file will be recreated with a lot less history and so it will be so much easier to search. In my case, i found: manager.EmulatorProcessHandler - Emulator: emulator: ERROR: Another emulator instance is running. Please close it or run all emulators with -read-only flag.. Given that, it is easy to solve. I just had to open a process manager and terminate the emu process that didn't correctly close for some unknown reason. Of course, in our case the log will be completely different. But now you have a clue of the hidden criminal.

我通过更新Android模拟器解决了同样的问题。

步骤:

1. In Android Studio Go to TOOLS
2. SDK Manager
3. Android SDK
4. SDK Tools
5. Update the Android Emulator.

然后它将运行。

查看这个参考https://stackoverflow.com/a/64384372/13952516