Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication ?Android

I updated my Android Studio to version 2.0. But I had a problem, I don't know why?

The important error info:

Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication: java.lang.IllegalStateException: java.lang.ClassNotFoundException: com.eallcn.rentagent.MyDebugEallApplication

I searched a long time, But I didn't find the right answer you can see the link

At the same time when I click File->Project structure It shows this error:

enter image description here

Is there any problem somewhere in the libs? When gradle build the program the libs didn't load completely for current program. Is there any problem with Android Studio version 2.0?

When I use Android studio 1.4.0 to build and run the program. It works fine for me! But when I use the Android Studio 2.0, the problem shows up!

Why? Could you help me, please?

Here is detailed error log:

11-28 11:57:00.489 19890-19890/com.eallcn.rentagent.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: com.eallcn.rentagent.debug, PID: 19890 java.lang.RuntimeException: Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication: java.lang.IllegalStateException: java.lang.ClassNotFoundException: com.eallcn.rentagent.MyDebugEallApplication at android.app.LoadedApk.makeApplication(LoadedApk.java:537) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4586) at android.app.ActivityThread.access$1800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5314)
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:864) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: java.lang.ClassNotFoundException: com.eallcn.rentagent.MyDebugEallApplication
at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:167) at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:179) at android.app.Application.attach(Application.java:194)
at android.app.Instrumentation.newApplication(Instrumentation.java:992)
at android.app.Instrumentation.newApplication(Instrumentation.java:976)
at android.app.LoadedApk.makeApplication(LoadedApk.java:532)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4586)  at android.app.ActivityThread.access$1800(ActivityThread.java:139)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:136)  at android.app.ActivityThread.main(ActivityThread.java:5314)  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:864)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.ClassNotFoundException: com.eallcn.rentagent.MyDebugEallApplication at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:251) at java.lang.Class.forName(Class.java:216) at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:155) at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:179)  at android.app.Application.attach(Application.java:194)  at android.app.Instrumentation.newApplication(Instrumentation.java:992)  at android.app.Instrumentation.newApplication(Instrumentation.java:976)  at android.app.LoadedApk.makeApplication(LoadedApk.java:532)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4586)  at android.app.ActivityThread.access$1800(ActivityThread.java:139)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:136)  at android.app.ActivityThread.main(ActivityThread.java:5314)  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:864)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.NoClassDefFoundError: com/eallcn/rentagent/MyDebugEallApplication at java.lang.Class.classForName(Native Method)  at java.lang.Class.forName(Class.java:251)  at java.lang.Class.forName(Class.java:216)  at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:155)  at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:179)  at android.app.Application.attach(Application.java:194)  at android.app.Instrumentation.newApplication(Instrumentation.java:992)  at android.app.Instrumentation.newApplication(Instrumentation.java:976)  at android.app.LoadedApk.makeApplication(LoadedApk.java:532)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4586)  at android.app.ActivityThread.access$1800(ActivityThread.java:139)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:136)  at android.app.ActivityThread.main(ActivityThread.java:5314)  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:864)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.ClassNotFoundException: Didn't find class "com.eallcn.rentagent.MyDebugEallApplication" on path: DexPathList[[zip file "/data/app/com.eallcn.rentagent.debug-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.eallcn.rentagent.debug-1, /vendor/lib, /system/lib, /data/datalib]] 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 java.lang.Class.classForName(Native Method)  at java.lang.Class.forName(Class.java:251)  at java.lang.Class.forName(Class.java:216)  at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:155)  at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:179)  at android.app.Application.attach(Application.java:194)  at android.app.Instrumentation.newApplication(Instrumentation.java:992)  at android.app.Instrumentation.newApplication(Instrumentation.java:976)  at android.app.LoadedApk.makeApplication(LoadedApk.java:532)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4586)  at android.app.ActivityThread.access$1800(ActivityThread.java:139)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:136)  at android.app.ActivityThread.main(ActivityThread.java:5314)  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:864)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680)  at dalvik.system.NativeStart.main(Native Method)

 


Disable the Instant Run option in Android Studio. Instructions are in the Android Studio Instant Run documentation.

Instant Run tries to do hot swapping of your code; this causes the application class to be moved.

To disable Instant Run Go to File --> Settings--> Build,Execution,Deployment -->Instant Run ---> uncheck "Enable instant run"


I had the same error after trying to use the 2.0.

I solved it by reverting some gradle changes:

1/3:

Changing:

classpath 'com.android.tools.build:gradle:2.0.0-alpha1'

By:

classpath 'com.android.tools.build:gradle:1.2.3'

2/3:

Changing:

buildToolsVersion '23.0.2'

By:

buildToolsVersion "21.1.2"

3/3: (in <project folder>/.idea/gradle.xml)

And:

<option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-2.8" />

By:

<option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-2.4" />

I don't know what line is exactly the origin of the error, but with this three changes it was solved.

Hope that it helps you :)


I had the same error.

I solved it by cleaning the project ( Build > Clean Project )