AndroidStudio Bugzilla

当app gradle设置如下时

useLibrary 'org.apache.http.legacy'
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.dqqdo.home"
minSdkVersion 14
targetSdkVersion 22
versionCode 1
versionName "1.0"
multiDexEnabled true
}

且project gradle如下时

buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0-alpha4'

// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}

allprojects {
repositories {
jcenter()
}
}

task clean(type: Delete) {
delete rootProject.buildDir
}

在Android5.0以上运行一切正常，5.0以下报如下错误，启动崩溃。

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.dqqdo.home, PID: 3337
java.lang.RuntimeException: Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication: java.lang.ClassNotFoundException: Didn't find class "com.android.tools.fd.runtime.BootstrapApplication" on path: DexPathList[[zip file "/data/app/com.dqqdo.home-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.dqqdo.home-1, /vendor/lib, /data/datalib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:537)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4562)
at android.app.ActivityThread.access$1800(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1302)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5290)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:859)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:675)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.tools.fd.runtime.BootstrapApplication" on path: DexPathList[[zip file "/data/app/com.dqqdo.home-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.dqqdo.home-1, /vendor/lib, /data/datalib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.app.Instrumentation.newApplication(Instrumentation.java:976)
at android.app.LoadedApk.makeApplication(LoadedApk.java:532)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4562)
at android.app.ActivityThread.access$1800(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1302)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5290)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:859)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:675)
at dalvik.system.NativeStart.main(Native Method)

Google Group关于这个的讨论，https://code.google.com/p/android/issues/detail?id=199327

报错原因应该是gradle工具的问题，但是我的版本已经不是2.0.0-alphaxx

defaultConfig {
applicationId "com.dqqdo.home"
minSdkVersion 14
targetSdkVersion 22
versionCode 1
versionName "1.0"
multiDexEnabled true
}

最后暂时改为targetSdkVersion 22。