11-29 09:24:48.929: W/dalvikvm(21671): VFY: unable to resolve virtual method 8: Landroid/support/v4/view/ViewPager;.setCurrentItem (I)V
11-29 09:24:48.929: W/dalvikvm(21671): VFY: unable to resolve virtual method 8: Landroid/support/v4/view/ViewPager;.setCurrentItem (I)V
11-29 09:24:48.929: W/dalvikvm(21671): VFY: unable to resolve virtual method 8: Landroid/support/v4/view/ViewPager;.setCurrentItem (I)V
11-29 09:24:48.939: E/dalvikvm(21671): Could not find class 'android.support.v4.view.ViewPager', referenced from method arabiannight.tistory.com.TestViewPagerActivity.onCreate
11-29 09:24:48.939: W/dalvikvm(21671): VFY: unable to resolve check-cast 8 (Landroid/support/v4/view/ViewPager;) in Larabiannight/tistory/com/TestViewPagerActivity;
11-29 09:24:48.939: W/dalvikvm(21671): Unable to resolve superclass of Larabiannight/tistory/com/TestViewPagerActivity$PagerAdapterClass; (7)
11-29 09:24:48.939: W/dalvikvm(21671): Link of class 'Larabiannight/tistory/com/TestViewPagerActivity$PagerAdapterClass;' failed
11-29 09:24:49.029: W/dalvikvm(21671): threadid=1: thread exiting with uncaught exception (group=0x40fd29d8)
11-29 09:24:49.039: E/AndroidRuntime(21671): FATAL EXCEPTION: main
11-29 09:24:49.039: E/AndroidRuntime(21671): java.lang.RuntimeException: Unable to start activity ComponentInfo{arabiannight.tistory.com/arabiannight.tistory.com.TestViewPagerActivity}: android.view.InflateException: Binary XML file line #34: Error inflating class android.support.v4.view.ViewPager
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1960)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1985)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread.access$600(ActivityThread.java:127)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1151)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.os.Handler.dispatchMessage(Handler.java:99)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.os.Looper.loop(Looper.java:137)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread.main(ActivityThread.java:4482)
11-29 09:24:49.039: E/AndroidRuntime(21671): at java.lang.reflect.Method.invokeNative(Native Method)
11-29 09:24:49.039: E/AndroidRuntime(21671): at java.lang.reflect.Method.invoke(Method.java:511)
11-29 09:24:49.039: E/AndroidRuntime(21671): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:788)
11-29 09:24:49.039: E/AndroidRuntime(21671): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-29 09:24:49.039: E/AndroidRuntime(21671): at dalvik.system.NativeStart.main(Native Method)
11-29 09:24:49.039: E/AndroidRuntime(21671): Caused by: android.view.InflateException: Binary XML file line #34: Error inflating class android.support.v4.view.ViewPager
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:691)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
11-29 09:24:49.039: E/AndroidRuntime(21671): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:262)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.Activity.setContentView(Activity.java:2071)
11-29 09:24:49.039: E/AndroidRuntime(21671): at arabiannight.tistory.com.TestViewPagerActivity.onCreate(TestViewPagerActivity.java:21)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.Activity.performCreate(Activity.java:4701)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1051)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1924)
11-29 09:24:49.039: E/AndroidRuntime(21671): ... 11 more
11-29 09:24:49.039: E/AndroidRuntime(21671): Caused by: java.lang.ClassNotFoundException: android.support.v4.view.ViewPager
11-29 09:24:49.039: E/AndroidRuntime(21671): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
11-29 09:24:49.039: E/AndroidRuntime(21671): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-29 09:24:49.039: E/AndroidRuntime(21671): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.createView(LayoutInflater.java:552)
11-29 09:24:49.039: E/AndroidRuntime(21671): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
11-29 09:24:49.039: E/AndroidRuntime(21671): ... 21 more
==================================================================

android-support-v4.jar 파일에 문제가 있다는 말 같은데, 
import도 시키고, java build path에서 라이브러리에 추가도 시켜봤는데 에러가 없어지지 않네요..
혹시 왜 그런지 아시는분 계신가요?
이 게시물을