05-01 18:11:13.801: E/AndroidRuntime(20960): FATAL EXCEPTION: main
05-01 18:11:13.801: E/AndroidRuntime(20960): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.learn2crack/com.CreaLeParole.menu_principale}: java.lang.NullPointerException
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2295)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread.access$700(ActivityThread.java:159)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.os.Handler.dispatchMessage(Handler.java:99)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.os.Looper.loop(Looper.java:176)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread.main(ActivityThread.java:5419)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at java.lang.reflect.Method.invokeNative(Native Method)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at java.lang.reflect.Method.invoke(Method.java:525)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at dalvik.system.NativeStart.main(Native Method)
05-01 18:11:13.801: E/AndroidRuntime(20960): Caused by: java.lang.NullPointerException
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at com.CreaLeParole.menu_principale.onCreate(menu_principale.java:64)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.Activity.performCreate(Activity.java:5372)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
05-01 18:11:13.801: E/AndroidRuntime(20960): 	... 11 more