Question

I’m using SherlockActionBar as well if that helps.

The line that triggered this exception is: setContentView(R.layout.activity);

The class I’m using extends SherlockFragmentActivity

The application name is com.testapp.androidapp

and the class is: com.testapp.androidapp.SwipeyTabsActivity.

I’ve tried this app on a few phones, and all work, except on this one device, the Nexus S. While all devices have reported an actual version number for Android (4.0.1, 2.3.3), this is the only device to have a named version (IceCreamSandwich).

The question is, how can I ensure that this error doesn’t occur? I don’t need the effect (EdgeEffect) if that helps.

These are my imports:

import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockFragmentActivity;


import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.view.ViewPager;

import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.Window;

import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.view.MenuItem.OnActionExpandListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

The summary of this exception is:

Caused by: java.lang.NoClassDefFoundError:
android.widget.EdgeEffect at
android.support.v4.widget.EdgeEffectCompatIcs.newEdgeEffect(EdgeEffectCompatIcs.java:30)
at
android.support.v4.widget.EdgeEffectCompat$EdgeEffectIcsImpl.newEdgeEffect(EdgeEffectCompat.java:92)
at
android.support.v4.widget.EdgeEffectCompat.(EdgeEffectCompat.java:133)
at
android.support.v4.view.ViewPager.initViewPager(ViewPager.java:290)

The full StackTrace:

java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.testapp.androidapp/com.testapp.androidapp.SwipeyTabsActivity}:
android.view.InflateException: Binary XML file line #22: Error
inflating class android.support.v4.view.ViewPager at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1859)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1875)
at android.app.ActivityThread.access$600(ActivityThread.java:122) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1062)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:137) at
android.app.ActivityThread.main(ActivityThread.java:4215) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:511) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at
dalvik.system.NativeStart.main(Native Method) Caused by:
android.view.InflateException: Binary XML file line #22: Error
inflating class android.support.v4.view.ViewPager at
android.view.LayoutInflater.createView(LayoutInflater.java:606) at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739) at
android.view.LayoutInflater.inflate(LayoutInflater.java:489) at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:244)
at
com.actionbarsherlock.internal.ActionBarSherlockNative.setContentView(ActionBarSherlockNative.java:119)
at
com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:251)
at
com.testapp.androidapp.SwipeyTabsActivity.onCreate(SwipeyTabsActivity.java:112)
at android.app.Activity.performCreate(Activity.java:4434) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1823)
… 11 more Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method) at
java.lang.reflect.Constructor.newInstance(Constructor.java:417) at
android.view.LayoutInflater.createView(LayoutInflater.java:586) …
23 more Caused by: java.lang.NoClassDefFoundError:
android.widget.EdgeEffect at
android.support.v4.widget.EdgeEffectCompatIcs.newEdgeEffect(EdgeEffectCompatIcs.java:30)
at
android.support.v4.widget.EdgeEffectCompat$EdgeEffectIcsImpl.newEdgeEffect(EdgeEffectCompat.java:92)
at
android.support.v4.widget.EdgeEffectCompat.(EdgeEffectCompat.java:133)
at
android.support.v4.view.ViewPager.initViewPager(ViewPager.java:290)
at android.support.v4.view.ViewPager.(ViewPager.java:277) …
26 more android.view.InflateException: Binary XML file line #22: Error
inflating class android.support.v4.view.ViewPager at
android.view.LayoutInflater.createView(LayoutInflater.java:606) at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739) at
android.view.LayoutInflater.inflate(LayoutInflater.java:489) at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:244)
at
com.actionbarsherlock.internal.ActionBarSherlockNative.setContentView(ActionBarSherlockNative.java:119)
at
com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:251)
at
com.testapp.androidapp.SwipeyTabsActivity.onCreate(SwipeyTabsActivity.java:112)
at android.app.Activity.performCreate(Activity.java:4434) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1823)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1875)
at android.app.ActivityThread.access$600(ActivityThread.java:122) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1062)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:137) at
android.app.ActivityThread.main(ActivityThread.java:4215) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:511) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at
dalvik.system.NativeStart.main(Native Method) Caused by:
java.lang.reflect.InvocationTargetException at
java.lang.reflect.Constructor.constructNative(Native Method) at
java.lang.reflect.Constructor.newInstance(Constructor.java:417) at
android.view.LayoutInflater.createView(LayoutInflater.java:586) …
23 more Caused by: java.lang.NoClassDefFoundError:
android.widget.EdgeEffect at
android.support.v4.widget.EdgeEffectCompatIcs.newEdgeEffect(EdgeEffectCompatIcs.java:30)
at
android.support.v4.widget.EdgeEffectCompat$EdgeEffectIcsImpl.newEdgeEffect(EdgeEffectCompat.java:92)
at
android.support.v4.widget.EdgeEffectCompat.(EdgeEffectCompat.java:133)
at
android.support.v4.view.ViewPager.initViewPager(ViewPager.java:290)
at android.support.v4.view.ViewPager.(ViewPager.java:277) …
26 more java.lang.reflect.InvocationTargetException at
java.lang.reflect.Constructor.constructNative(Native Method) at
java.lang.reflect.Constructor.newInstance(Constructor.java:417) at
android.view.LayoutInflater.createView(LayoutInflater.java:586) at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739) at
android.view.LayoutInflater.inflate(LayoutInflater.java:489) at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:244)
at
com.actionbarsherlock.internal.ActionBarSherlockNative.setContentView(ActionBarSherlockNative.java:119)
at
com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:251)
at
com.testapp.androidapp.SwipeyTabsActivity.onCreate(SwipeyTabsActivity.java:112)
at android.app.Activity.performCreate(Activity.java:4434) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1823)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1875)
at android.app.ActivityThread.access$600(ActivityThread.java:122) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1062)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:137) at
android.app.ActivityThread.main(ActivityThread.java:4215) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:511) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at
dalvik.system.NativeStart.main(Native Method) Caused by:
java.lang.NoClassDefFoundError: android.widget.EdgeEffect at
android.support.v4.widget.EdgeEffectCompatIcs.newEdgeEffect(EdgeEffectCompatIcs.java:30)
at
android.support.v4.widget.EdgeEffectCompat$EdgeEffectIcsImpl.newEdgeEffect(EdgeEffectCompat.java:92)
at
android.support.v4.widget.EdgeEffectCompat.(EdgeEffectCompat.java:133)
at
android.support.v4.view.ViewPager.initViewPager(ViewPager.java:290)
at android.support.v4.view.ViewPager.(ViewPager.java:277) …
26 more java.lang.NoClassDefFoundError: android.widget.EdgeEffect at
android.support.v4.widget.EdgeEffectCompatIcs.newEdgeEffect(EdgeEffectCompatIcs.java:30)
at
android.support.v4.widget.EdgeEffectCompat$EdgeEffectIcsImpl.newEdgeEffect(EdgeEffectCompat.java:92)
at
android.support.v4.widget.EdgeEffectCompat.(EdgeEffectCompat.java:133)
at
android.support.v4.view.ViewPager.initViewPager(ViewPager.java:290)
at android.support.v4.view.ViewPager.(ViewPager.java:277) at
java.lang.reflect.Constructor.constructNative(Native Method) at
java.lang.reflect.Constructor.newInstance(Constructor.java:417) at
android.view.LayoutInflater.createView(LayoutInflater.java:586) at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739) at
android.view.LayoutInflater.inflate(LayoutInflater.java:489) at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:244)
at
com.actionbarsherlock.internal.ActionBarSherlockNative.setContentView(ActionBarSherlockNative.java:119)
at
com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:251)
at
com.testapp.androidapp.SwipeyTabsActivity.onCreate(SwipeyTabsActivity.java:112)
at android.app.Activity.performCreate(Activity.java:4434) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1823)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1875)
at android.app.ActivityThread.access$600(ActivityThread.java:122) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1062)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:137) at
android.app.ActivityThread.main(ActivityThread.java:4215) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:511) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at
dalvik.system.NativeStart.main(Native Method)

Answer 1

If you scroll up in the LogCat to a bit before the exception occurs, you’ll see a line that says something like Unable to find the superclass for that class.

There are only three reasons you will ever get this error:

1. The class genuinely doesn’t exist. If you are using code from an official example and getting this, make sure you have the latest build of the library
2. You have not added the jar to your build path. To fix this, right click on the jar in Eclipse, and do Build Path ► Add to Build Path.
3. Your jar is not in the /libs folder. This happens when you have added the jar to the build path, but newer versions of ADT need it to be in /libs. Put it there and re-add it to the build path.