ZXING problems

Eclipse for Mobile Developers
Version: Juno Release
Build id: 20120614-1722
Examples ANDROID-SDK2.3.3 version compiled ZXING2.0 inside ANDROID directory, without any changes to compile, but the phone runs on an error.
core.jar also original file directory. Logcat file as follows:
09-24 03:21:13.191: W / dalvikvm (7310): threadid = 1: thread exiting with uncaught exception (group = 0x40018560)
09-24 03:21:13.203: E / AndroidRuntime (7310): FATAL EXCEPTION: main
09-24 03:21:13.203: E / AndroidRuntime (7310): java.lang.ExceptionInInitializerError
09-24 03:21:13.203: E / AndroidRuntime (7310): at java.lang.Class.newInstanceImpl (Native Method)
09-24 03:21:13.203: E / AndroidRuntime (7310): at java.lang.Class.newInstance (Class.java: 1440)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.Instrumentation.newActivity (SourceFile: 1056)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.ActivityThread.performLaunchActivity (SourceFile: 1643)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.ActivityThread.handleLaunchActivity (SourceFile: 1753)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.ActivityThread.access $ 1500 (SourceFile: 155)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.ActivityThread $ H.handleMessage (SourceFile: 993)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.os.Handler.dispatchMessage (SourceFile: 130)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.os.Looper.loop (SourceFile: 329)
09-24 03:21:13.203: E / AndroidRuntime (7310): at android.app.ActivityThread.main (SourceFile: 3820)
09-24 03:21:13.203: E / AndroidRuntime (7310): at java.lang.reflect.Method.invokeNative (Native Method)
09-24 03:21:13.203: E / AndroidRuntime (7310): at java.lang.reflect.Method.invoke (Method.java: 538)
09-24 03:21:13.203: E / AndroidRuntime (7310): at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (SourceFile: 901)
09-24 03:21:13.203: E / AndroidRuntime (7310): at com.android.internal.os.ZygoteInit.main (SourceFile: 659)
09-24 03:21:13.203: E / AndroidRuntime (7310): at dalvik.system.NativeStart.main (Native Method)
09-24 03:21:13.203: E / AndroidRuntime (7310): Caused by: java.lang.NoClassDefFoundError: com.google.zxing.ResultMetadataType
09-24 03:21:13.203: E / AndroidRuntime (7310): at com.google.zxing.client.android.CaptureActivity . (CaptureActivity.java: 107)
09-24 03:21:13.203: E / AndroidRuntime (7310): ... 15 more<-! Main posts under Banner (D4) -><-! Posts under the main text (D5) ->
Reply:
09-24 03:21:13.203: E / AndroidRuntime (7310): Caused by: java.lang.NoClassDefFoundError: com.google.zxing.ResultMetadataType


ResultMetadataType This class is not found, check the library is not there something no download
Reply:
09-24 03:21:13.203: E / AndroidRuntime (7310): Caused by: java.lang.NoClassDefFoundError: com.google.zxing.ResultMetadataType


ResultMetadataType This class is not found, check the library is not there something no download
Reply:
Solve the problem, thanks.
Reply:
May I ask how to solve?

reference to the third floor of the reply:

solve the problem, thanks.

Reply:
Will lz how to solve, I also have this problem ah