环境变量ANDROID_AVD_HOME可以用来定义AVD管理器查找AVD INI文件的目录，因此可以用来改变虚拟设备的位置;

默认值为%USERPROFILE%\。android\avd在Windows(或~/。Linux上的android/avd)。

也可以为整个目录%USERPROFILE%\创建一个链接。Windows上的android(或目录~/的符号链接)。Linux上的android)。

移动AVD时，AVD INI文件中的路径条目需要相应更新。

在AVD管理器中，使用谷歌api的目标设置AVD后，运行时得到错误。

详细信息显示:“AVD未知目标'谷歌Inc.:谷歌api:......”

在安装期间(在Win7系统上)，我选择了一个SDK目录位置，而不是接受c:\ users \… 然后我将该目录添加到环境变量path中 命令行:android列表目标确实显示了两个谷歌api。

设置ANDROID_SDK_HOME到我的安装路径修复了avd运行错误。

我关注了https://www.mysysadmintips.com/windows/clients/761-move-android-studio-avd-folder-to-a-new-location。

Start copying a folder "C:\Users\user\.android\avd" to "D:\Android\.android\avd" (or something else). Close Android Studio and running emulators. Press Win + Break and open Advanced System Settings. Then press Environment Variables. Add a user variable ANDROID_SDK_HOME. (I didn't experiment with ANDROID_AVD_HOME.) In Variable value field write D:\Android. If you also moved SDK to another folder, change ANDROID_HOME (I forgot to change it and some emulators didn't launch, see https://stackoverflow.com/a/57408085/2914140). Wait until the folder will finish copying and start Android Studio. Open Android Virtual Device Manager and see a list of emulators. If you don't see emulators and they existed, then probably you entered wrong path into user variable value in step 3. In this case close AS, change the variable and open AS again. Start any emulator. It will try to restore it's state, but it sometimes fails. A black screen can appear instead of Android wallpaper. In this case you can: a. Restart your emulator. To do this close running emulator, then in AVD Manager click Cold Boot Now.

b.如果这没有帮助，打开模拟器设置，在文件“D:\Android\. Android\ avd\Pixel_API_27.ini”中找到。

更改路径到一个新的AVD文件夹。重新启动模拟器。

删除旧的AVD文件夹从“C:\Users\user\.android\ AVD”

在我的例子中，我关心的是C:驱动器磁盘空间。 所以我所做的就是复制。Avd "文件夹(不是文件)到其他驱动器，并留下".ini"文件，但改变它指向移动

进入Android tools目录。编辑android.bat命令文件。在命令文件的末尾，找到类似于

call %java_exe% -Djava.ext.dirs=%java_ext_dirs% -Dcom.android.sdkmanager.toolsdir="%tools_dir%" -Dcom.android.sdkmanager.workdir="%work_dir%" -jar %jar_path% %*

和替换

call %java_exe%

with

call %java_exe% -Duser.home={your_prefer_dir}

{your_prefer_dire}是您的首选目录，不带大括号，但添加双引号，

如。

call %java_exe% -Duser.home="E:\Program Files (x86)\android-sdk-windows"

In Windows 10 I had that problem because My C Drive was getting full and I had needed free Space, AVD folder had 14 gig space so I needed to move that folder to another driver, first answer not work for Me so I tested another way to fix it this problem, I make a picture for you if you have the same problem, you don't need to move all of the files in .android folder to another drive (this way not work) just move avd folders in ....android\avd to another drive and open .ini files and change avd folder path from that file to the new path. Like this image:

我希望这对你有用。

注意:小心在ini文件的路径之前和之后有一个你看不到的单独的字符，如果你删除了那个字符，它就不起作用了