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Editorial Team
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Asked: 2026-06-17T11:31:40+00:00

I used this tutorial to get Eclipse, Scala and Android up and running: http://scala-ide.org/docs/tutorials/androiddevelopment/index.html

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I used this tutorial to get Eclipse, Scala and Android up and running:
http://scala-ide.org/docs/tutorials/androiddevelopment/index.html

I also took the example source code of this webpage (delete MainActivity.java – created MainActivity.scala).

Running the application, I get error messages:

01-15 18:14:06.740: I/dalvikvm(27536): Failed resolving Lcom/test/helloworldscala/MainActivity; interface 540 'Lscala/ScalaObject;'
01-15 18:14:06.740: W/dalvikvm(27536): Link of class 'Lcom/test/helloworldscala/MainActivity;' failed
01-15 18:14:06.740: D/AndroidRuntime(27536): Shutting down VM
01-15 18:14:06.740: W/dalvikvm(27536): threadid=1: thread exiting with uncaught exception (group=0x415fd2a0)
01-15 18:14:06.740: E/AndroidRuntime(27536): FATAL EXCEPTION: main
01-15 18:14:06.740: E/AndroidRuntime(27536): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.test.helloworldscala/com.test.helloworldscala.MainActivity}: java.lang.ClassNotFoundException: com.test.helloworldscala.MainActivity
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2024)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread.access$600(ActivityThread.java:140)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.os.Looper.loop(Looper.java:137)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread.main(ActivityThread.java:4898)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at java.lang.reflect.Method.invokeNative(Native Method)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at java.lang.reflect.Method.invoke(Method.java:511)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at dalvik.system.NativeStart.main(Native Method)
01-15 18:14:06.740: E/AndroidRuntime(27536): Caused by: java.lang.ClassNotFoundException: com.test.helloworldscala.MainActivity
01-15 18:14:06.740: E/AndroidRuntime(27536):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.Instrumentation.newActivity(Instrumentation.java:1057)
01-15 18:14:06.740: E/AndroidRuntime(27536):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2015)
01-15 18:14:06.740: E/AndroidRuntime(27536):    ... 11 more

Does anyone know what’s wrong here?

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1 Answer

  1. Editorial Team

    I had to use a nightly build of the Scala-IDE with Scala 2.10., then it works perfectly.

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