Was this issue solved. I am getting the same error after follwinng the documented steps http://forum.unity3d.com/threads/71607-Integrating-Unity-and-Eclipse

09-28 17:02:37.522: E/AndroidRuntime(18714): FATAL EXCEPTION: main
09-28 17:02:37.522: E/AndroidRuntime(18714): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.qualcomm.QCARUnityPlayer/com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity}: java.lang.ClassNotFoundException: com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity in loader dalvik.system.PathClassLoader[/data/app/com.qualcomm.QCARUnityPlayer-1.apk]
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1738)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1837)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.ActivityThread.access$1500(ActivityThread.java:132)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1033)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.os.Looper.loop(Looper.java:143)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.ActivityThread.main(ActivityThread.java:4196)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at java.lang.reflect.Method.invokeNative(Native Method)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at java.lang.reflect.Method.invoke(Method.java:507)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at dalvik.system.NativeStart.main(Native Method)
09-28 17:02:37.522: E/AndroidRuntime(18714): Caused by: java.lang.ClassNotFoundException: com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity in loader dalvik.system.PathClassLoader[/data/app/com.qualcomm.QCARUnityPlayer-1.apk]
09-28 17:02:37.522: E/AndroidRuntime(18714):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-28 17:02:37.522: E/AndroidRuntime(18714):     at android.app.Instrumentation.newActivity(Instrumentation.java:1061)

Any ideas what it could be? I'm using the new sdk I read that they changed the way jar files are loaded you should now add them to the libs folder but when I do that it does not work eather.

Yes see your inbox.

Can you send me the project?

Nope I created the project from Unity. So this is not the solution of the problem grr.

The NDK is required for the native Android SDK. But you should be able to use the shared libraries from Unity without it. Have you confirmed that these run as a stand-alone Unity project?

Could it be the problem that I don't have ndk installed? Is this required?

Yes I see the same when in debug mode.

I wonder if Proguard is playing a role. Do you see the same when building in Debug mode?

That's strange I have this:

https://docs.google.com/file/d/0B-YKBtylPP4pR3ZiUkQ5V2tTT28/edit

And still it does not work could there be someting else what is wrong?

Yes that appears to be the same document ( thanks for catching that ). The errors that you're getting appear to derive from a native invocation (e.g. to a C++ shared library ).

This is what your project structure should look like in Eclipse. You'll want to confirm that the *.so's are present..

https://docs.google.com/file/d/0BxCRPTKkNDTxblVBYlhCZEhiMFk/edit

Ok I tried the steps many times today but I still getting errors when I run it on my device.

In my log:

07-05 14:38:48.430: E/AndroidRuntime(24526): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.qualcomm.QCARUnityPlayer/com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity}: java.lang.ClassNotFoundException: com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity in loader dalvik.system.PathClassLoader[/data/app/com.qualcomm.QCARUnityPlayer-2.apk]

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1742)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1834)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread.access$500(ActivityThread.java:122)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1027)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.os.Handler.dispatchMessage(Handler.java:99)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.os.Looper.loop(Looper.java:132)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread.main(ActivityThread.java:4126)

07-05 14:38:48.430: E/AndroidRuntime(24526): at java.lang.reflect.Method.invokeNative(Native Method)

07-05 14:38:48.430: E/AndroidRuntime(24526): at java.lang.reflect.Method.invoke(Method.java:491)

07-05 14:38:48.430: E/AndroidRuntime(24526): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)

07-05 14:38:48.430: E/AndroidRuntime(24526): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

07-05 14:38:48.430: E/AndroidRuntime(24526): at dalvik.system.NativeStart.main(Native Method)

07-05 14:38:48.430: E/AndroidRuntime(24526): Caused by: java.lang.ClassNotFoundException: com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity in loader dalvik.system.PathClassLoader[/data/app/com.qualcomm.QCARUnityPlayer-2.apk]

07-05 14:38:48.430: E/AndroidRuntime(24526): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:251)

07-05 14:38:48.430: E/AndroidRuntime(24526): at java.lang.ClassLoader.loadClass(ClassLoader.java:540)

07-05 14:38:48.430: E/AndroidRuntime(24526): at java.lang.ClassLoader.loadClass(ClassLoader.java:500)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.Instrumentation.newActivity(Instrumentation.java:1022)

07-05 14:38:48.430: E/AndroidRuntime(24526): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1733)

07-05 14:38:48.430: E/AndroidRuntime(24526): ... 11 more

It seems that on runtime android is not able to load the jars that are included.

Any ideas how to solve this?

ps I found this link:

http://www.rbcafe.com/Softwares/Unity/Documentation/Manual/Android-Integrating%20Unity%20With%20Eclipse.html

is that the same as you posted?

DavidBeard wrote:

Try these steps..

 

1. Start with the Unity ImageTargets sample and follow this guide: http://unity3d.com/support/documentation/Manual/Android-Integrating%20Unity%20With%20Eclipse.html. You can skip the last section (Getting Your Unity Content Running) for now.

That link is not working but I asume that it's the same as guide as I already read.

I will try the steps you discribe thank you.

Try these steps..

1. Start with the Unity ImageTargets sample and follow this guide: http://unity3d.com/support/documentation/Manual/Android-Integrating%20Unity%20With%20Eclipse.html. You can skip the last section (Getting Your Unity Content Running) for now.
2. Add QCAR.jar and QCARUnityPlayer.jar to the Java Build Path of your custom Android project. These are found in the StagingArea/plugins folder.
3. Copy the StagingArea/raw/QCAR folder to the assets folder of your custom Android project.
4. Copy the AndroidManifest.xml file from the StagingArea project to your custom Android project.
5. Run your custom Android project. You should see the camera background and tracking should work.