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Android project working on Motodev but crashes on Eclipse

I made an android project on Motodev (which is an eclipse plugin itself). But now when I am trying to run the same project on eclipse, the emulator gives me an error the following error:
FATAL EXCEPTION: main E/AndroidRuntime(4711): java.lang.VerifyError: com.tenpearls.namecalling.Activities.SearchContactsActivity
E/AndroidRuntime(4711): at java.lang.Class.newInstanceImpl(Native Method)
E/AndroidRuntime(4711): at java.lang.Class.newInstance(Class.java:1429)
E/AndroidRuntime(4711): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
E/AndroidRuntime(4711): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
E/AndroidRuntime(4711): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
E/AndroidRuntime(4711): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
E/AndroidRuntime(4711): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
E/AndroidRuntime(4711): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(4711): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(4711): at android.app.ActivityThread.main(ActivityThread.java:4627)
E/AndroidRuntime(4711): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(4711): at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(4711): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
E/AndroidRuntime(4711): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
E/AndroidRuntime(4711): at dalvik.system.NativeStart.main(Native Method)

That can be the result when you have compiled against a different library than you are using at runtime.
A good explanation can be had here.
Another possibility is having a duplicate class in the classpath somewhere, such as in a library jar.

Android and slf4j : "java.lang.NoClassDefFoundError: org.slf4j.LoggerFactory"

Two days ago, when my android project in eclipse still worked, I added "android SDK 4.0.3" to my SDKs (in addition to android SDK 2.1).
From that moment on, I have a trouble with slf4j-android library; here's the exception:
Uncaught handler: thread main exiting due to uncaught exception
java.lang.ExceptionInInitializerError
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1479)
at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2409)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
at android.app.ActivityThread.access$2200(ActivityThread.java:119)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4363)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoClassDefFoundError: org.slf4j.LoggerFactory
at it.cefriel.swa.urbanopoly.client.game.UrbanopolyActivity.<clinit>(UrbanopolyActivity.java:11)
The JAR I use is slf4j-android-1.5.8.jar. The build path seems correctly setted. I also tried to create another project using slf4j and I got the same error..
Any Ideas?
Thanks in advance

Try adding the slf4j-api-1.5.8.jar or latest version as well with the current slf4j-android-1.5.8.jar

OPEN FEINT error in Android App

15 reports
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.oas.fruitkungfufree/com.openfeint.internal.ui.IntroFlow}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at android.app.ActivityThread.access$2300(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.openfeint.internal.Util.setOrientation(Util.java:36)
at com.openfeint.internal.ui.NestedWindow.onCreate(NestedWindow.java:32)
at com.openfeint.internal.ui.WebNav.onCreate(WebNav.java:93)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
Does any one have a solution for this??

This is a problem with your code, you can't use an object that is null. This is a hint.

AdWhirl with Admob bug fix

Updated to the latest version of AdWhirl and AdMob SDK but getting a known error from the AdMob SDK in Android 2.1-update1. Found in this thread https://groups.google.com/forum/#!topic/google-admob-ads-sdk/cNxRgIUHJH0
but it refers to only and AdMob fix not AdWhirl any clue what changes can be made to the AdWhirl SDK to fix this?
Thanks In Advance!
java.lang.NullPointerException
at android.webkit.WebView.getSettings(WebView.java:2791)
at android.webkit.WebView.onWindowFocusChanged(WebView.java:3616)
at android.view.View.dispatchWindowFocusChanged(View.java:3764)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:754)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:758)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1819)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4370)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
How about this one:
java.lang.NullPointerException
at com.adwhirl.AdWhirlLayout.handleAd(AdWhirlLayout.java:227)
at com.adwhirl.AdWhirlLayout.access$3(AdWhirlLayout.java:215)
at com.adwhirl.AdWhirlLayout$HandleAdRunnable.run(AdWhirlLayout.java:410)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3691)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
at dalvik.system.NativeStart.main(Native Method)

The issue is not in the AdWhirl code, or even the AdMob code. This is a NullPointerException in the Android WebView, and there is no known workaround for the AdMob/AdWhirl code. This shouldn't be happening that often, but if it really is a deal breaker, you may want to turn down the number of requests you're sending to AdMob.

Yes, I also have this problem.
My workaround: extend AdWhirlLayout, override dispatchWindowFocusChanged and every other method that have this exception occurring and catch the exception.

NetworkConnectivityListener class not found on UPC300-2.2 Viewsonic G-Tablet

I am getting this error in my application, and this happens only on UPC300-2.2 Viewsonic G-Tablet. All answers I've found so far (including this one) adviced on putting
<uses-permission android:name="android.permission.INTERNET"/>
to the manifest file, but it doesn't help.
Here is the complete stacktrace:
java.lang.NoClassDefFoundError: android.net.NetworkConnectivityListener
at
com.google.android.maps.MapActivity.onCreate(MapActivity.java:199)
at
myapp.Activity.ActivityMapSearch.onCreate(ActivityMapSearch.java:99)
at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at
android.app.ActivityThread.access$2300(ActivityThread.java:125)
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at
android.os.Handler.dispatchMessage(Handler.java:99)
at
android.os.Looper.loop(Looper.java:123)
at
android.app.ActivityThread.main(ActivityThread.java:4627)
at
java.lang.reflect.Method.invokeNative(Native
Method) at
java.lang.reflect.Method.invoke(Method.java:521)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at
dalvik.system.NativeStart.main(Native
Method)

If that is TRUE, you can grab the source code of the class from the Android Source and add it yourself