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Problems running Android APK file when merging dex files using Scala

I am trying to create Android applications using Scala 2.9.1 and SBT 0.13 and Android-Plugin.
However, launching ProGuard can be very slow.
Thus, instead, when I have not been using any new classes / methods since the previous build, I just try to combine classes.dex with my own dexed android-app classes (e.g., MainActivity.scalaetc.).

The problem I get (on Android 4.0.x) is that the merge goes without any errors, but when I try to run the application, I get this one "Unfortunately, MyAndroidApp has stopped".

Here is the logcat log:

  EmbeddedLogger  E  App crashed! Package: com.my.app v0 (0.1)
  300         EmbeddedLogger  E  Application Label: MyAndroidApp
 24137        AndroidRuntime  E  FATAL EXCEPTION: main
 24137        AndroidRuntime  E  java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.my.app/com.my.app.MainActivity}: java.lang.ClassNotFoundException: com.my.app.MainActivity
 24137        AndroidRuntime  E   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2118)
 24137        AndroidRuntime  E   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2237)
 24137        AndroidRuntime  E   at android.app.ActivityThread.access$600(ActivityThread.java:139)
 24137        AndroidRuntime  E   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1262)
 24137        AndroidRuntime  E   at android.os.Handler.dispatchMessage(Handler.java:99)
 24137        AndroidRuntime  E   at android.os.Looper.loop(Looper.java:156)
 24137        AndroidRuntime  E   at android.app.ActivityThread.main(ActivityThread.java:5005)
 24137        AndroidRuntime  E   at java.lang.reflect.Method.invokeNative(Native Method)
 24137        AndroidRuntime  E   at java.lang.reflect.Method.invoke(Method.java:511)
 24137        AndroidRuntime  E   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
 24137        AndroidRuntime  E   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
 24137        AndroidRuntime  E   at dalvik.system.NativeStart.main(Native Method)
 24137        AndroidRuntime  E  Caused by: java.lang.ClassNotFoundException: com.my.app.MainActivity
 24137        AndroidRuntime  E   at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
 24137        AndroidRuntime  E   at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
 24137        AndroidRuntime  E   at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
 24137        AndroidRuntime  E   at android.app.Instrumentation.newActivity(Instrumentation.java:1039)
 24137        AndroidRuntime  E   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2109)
 24137        AndroidRuntime  E   ... 11 more
  300        ActivityManager  W    Force finishing activity com.my.app/.MainActivity
  5864        OpenGLRenderer  D  Flushing caches (mode 1)
  300           ViewRootImpl  D  @@@- disable SystemServer HW acceleration

I manually opened the generated apk and class.dex inside it, went through the packages and found MainActivity.

.

+5
2

, , .

, Scala scala.ScalaObject.
dexed com.my.app.MainActivity scala.ScalaObject.

, scala.ScalaObject classes.dex, , DVM public class com.my.app.MyAndroidApp extends android.app.Activity implements com.my.app.TypedActivity with scala.ScalaObject.

+2

- - . logcat , , dalvik. , .

+1

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