맵뷰 해보고있는데요 에러해석좀 해주세요 ㅠ

07-28 06:06:49.763: ERROR/AndroidRuntime(369): FATAL EXCEPTION: main
07-28 06:06:49.763: ERROR/AndroidRuntime(369): java.lang.RuntimeException: Unable to start activity ComponentInfo{exam.Test/exam.Test.mapview}: android.view.InflateException: Binary XML file line #7: Error inflating class com.google.android.maps.MapView
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.os.Looper.loop(Looper.java:123)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread.main(ActivityThread.java:4627)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at java.lang.reflect.Method.invokeNative(Native Method)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at java.lang.reflect.Method.invoke(Method.java:521)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at dalvik.system.NativeStart.main(Native Method)
07-28 06:06:49.763: ERROR/AndroidRuntime(369): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class com.google.android.maps.MapView
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.Activity.setContentView(Activity.java:1647)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at exam.Test.mapview.onCreate(mapview.java:19)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     ... 11 more
07-28 06:06:49.763: ERROR/AndroidRuntime(369): Caused by: java.lang.ClassNotFoundException: com.google.android.maps.MapView in loader dalvik.system.PathClassLoader[/data/app/exam.Test-2.apk]
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.createView(LayoutInflater.java:466)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
07-28 06:06:49.763: ERROR/AndroidRuntime(369):     ... 20 more