恐慌：找不到AVD系统路径。请定义ANDROID_SDK_ROOT

Question

我正在尝试运行我的第一个离子应用程序，但我得到了这个错误，它没有找到我的手机，也没有找到模拟器运行。

C:\Users\MART\Dropbox\Ionic\myapp>ionic run android
Running command: "C:\Program Files\nodejs\node.exe" C:\Users\MART\Dropbox\Ionic\myapp\hooks\after_prepare\010_add_platform_class.js C:\Users\MART\Dropbox\Ionic\myapp

add to body class: platform-android

ANDROID_HOME=C:\Users\MART\Dropbox\Ionic\adt-bundle-windows-x86_64-20140702\sdk

JAVA_HOME=C:\Program Files\Java\1.8.0_20\jdk1.8.0_20

Subproject Path: CordovaLib

Incremental java compilation is an incubating feature.

:preBuild UP-TO-DATE
:preDebugBuild UP-TO-DATE
:checkDebugManifest
:CordovaLib:preBuild UP-TO-DATE
:CordovaLib:preDebugBuild UP-TO-DATE
:CordovaLib:checkDebugManifest   
:CordovaLib:prepareDebugDependencies
:CordovaLib:compileDebugAidl UP-TO-DATE
:CordovaLib:compileDebugNdk UP-TO-DATE
:CordovaLib:compileLint UP-TO-DATE
:CordovaLib:copyDebugLint UP-TO-DATE
:CordovaLib:mergeDebugShaders UP-TO-DATE
:CordovaLib:compileDebugShaders UP-TO-DATE
:CordovaLib:generateDebugAssets UP-TO-DATE
:CordovaLib:mergeDebugAssets UP-TO-DATE
:CordovaLib:mergeDebugProguardFiles UP-TO-DATE
:CordovaLib:packageDebugRenderscript UP-TO-DATE
:CordovaLib:compileDebugRenderscript UP-TO-DATE
:CordovaLib:generateDebugResValues UP-TO-DATE
:CordovaLib:generateDebugResources UP-TO-DATE
:CordovaLib:packageDebugResources UP-TO-DATE
:CordovaLib:processDebugManifest UP-TO-DATE
:CordovaLib:generateDebugBuildConfig UP-TO-DATE
:CordovaLib:processDebugResources UP-TO-DATE
:CordovaLib:generateDebugSources UP-TO-DATE
:CordovaLib:incrementalDebugJavaCompilationSafeguard UP-TO-DATE
:CordovaLib:compileDebugJavaWithJavac UP-TO-DATE
:CordovaLib:processDebugJavaRes UP-TO-DATE
:CordovaLib:transformResourcesWithMergeJavaResForDebug UP-TO-DATE
:CordovaLib:transformClassesAndResourcesWithSyncLibJarsForDebug UP-TO-DATE
:CordovaLib:mergeDebugJniLibFolders UP-TO-DATE
:CordovaLib:transformNative_libsWithMergeJniLibsForDebug UP-TO-DATE
:CordovaLib:transformNative_libsWithSyncJniLibsForDebug UP-TO-DATE
:CordovaLib:bundleDebug UP-TO-DATE
:prepareAndroidCordovaLibUnspecifiedDebugLibrary UP-TO-DATE
:prepareDebugDependencies
:compileDebugAidl UP-TO-DATE
:compileDebugRenderscript UP-TO-DATE
:generateDebugBuildConfig UP-TO-DATE
:generateDebugResValues UP-TO-DATE
:generateDebugResources UP-TO-DATE 
:mergeDebugResources UP-TO-DATE
:processDebugManifest UP-TO-DATE
:processDebugResources UP-TO-DATE
:generateDebugSources UP-TO-DATE
:incrementalDebugJavaCompilationSafeguard UP-TO-DATE
:compileDebugJavaWithJavac UP-TO-DATE
:compileDebugNdk UP-TO-DATE
:compileDebugSources UP-TO-DATE
:mergeDebugShaders UP-TO-DATE
:compileDebugShaders UP-TO-DATE
:generateDebugAssets UP-TO-DATE
:mergeDebugAssets UP-TO-DATE
:transformClassesWithDexForDebug UP-TO-DATE
:mergeDebugJniLibFolders UP-TO-DATE
:transformNative_libsWithMergeJniLibsForDebug UP-TO-DATE
:processDebugJavaRes UP-TO-DATE
:transformResourcesWithMergeJavaResForDebug UP-TO-DATE
:validateSigningDebug
:packageDebug UP-TO-DATE
:assembleDebug UP-TO-DATE
:cdvBuildDebug UP-TO-DATE    
BUILD SUCCESSFUL
Total time: 4.105 secs

Built the following apk(s):
        C:/Users/MART/Dropbox/Ionic/myapp/platforms/android/build/outputs/apk/android-debug.apk

ANDROID_HOME=C:\Users\MART\Dropbox\Ionic\adt-bundle-windows-x86_64-20140702\sdk

JAVA_HOME=C:\Program Files\Java\1.8.0_20\jdk1.8.0_20

No target specified and no devices found, deploying to emulator


No emulator specified, defaulting to Nexus

Waiting for emulator to start...

PANIC: Cannot
 find AVD system path. Please define ANDROID_SDK_ROOT

.....................................................

我已经在我的android管理器中安装了这个

Answer 1

当我在windows上运行我的ionic 2应用程序（ionic run android）时也有同样的问题，我通过以下步骤解决了这个问题，希望能对你有所帮助。

1-开始你的Android Studio。

2-创建一个能够创建或删除虚拟设备的新项目。

3-删除任何虚拟设备，如果找到。

4-并通过AVD管理器创建虚拟设备，如下所示。