您好我在Windows 7 32位上安装了最新版本的Android Studio。
我创建了一个欢迎应用程序，但是当我尝试使用AVD进行测试时，它没有启动，而是显示以下错误：
Executing tasks: [:app:assembleDebug, :app:assembleDebugTest]
Configuration on demand is an incubating feature.
:app:preBuild
:app:compileDebugNdk UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild
:app:prepareComAndroidSupportAppcompatV72102Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42102Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources
:app:generateDebugSources
:app:compileDebugJava
:app:preDexDebug
The system cannot find the path specified.
The system cannot find the path specified.
FAILED
The system cannot find the path specified.
The system cannot find the path specified.
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:preDexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
E:\Android\AndroidStudio\sdk\build-tools\21.1.1\dx.bat --dex --output E:\Android\AndroidStudio\WorkLocation\MyApplication\app\build\intermediates\pre-dexed\debug\classes-0f52de9bbc91bb9956813aaf2c6f0ff9d0160fa0.jar E:\Android\AndroidStudio\WorkLocation\MyApplication\app\build\intermediates\exploded-aar\com.android.support\appcompat-v7\21.0.2\classes.jar
Error Code: 1
Output: The system cannot find the path specified.
Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 24.154 secs
**Failed to complete Gradle execution
Cause:**
有谁知道如何解决这个问题？