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AndroidRuntime(220): Caused by: java.lang.NullPointerException

www.MyException.Cn  网友分享于:2013-11-11  浏览:1552次
angroid中出现以下问题,什么原因?
08-01 09:10:25.171: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test' (No such file or directory)
08-01 09:10:25.171: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test' (No such file or directory)
08-01 09:10:25.171: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test2' (No such file or directory)
08-01 09:10:25.171: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test2' (No such file or directory)
08-01 09:10:35.502: ERROR/BatteryService(52): usbOnlinePath not found
08-01 09:10:35.502: ERROR/BatteryService(52): batteryVoltagePath not found
08-01 09:10:35.502: ERROR/BatteryService(52): batteryTemperaturePath not found
08-01 09:10:35.522: ERROR/SurfaceFlinger(52): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake
08-01 09:10:38.921: ERROR/EventHub(52): could not get driver version for /dev/input/mouse0, Not a typewriter
08-01 09:10:38.921: ERROR/EventHub(52): could not get driver version for /dev/input/mice, Not a typewriter
08-01 09:10:39.131: ERROR/System(52): Failure starting core service
08-01 09:10:39.131: ERROR/System(52): java.lang.SecurityException
08-01 09:10:39.131: ERROR/System(52): at android.os.BinderProxy.transact(Native Method)
08-01 09:10:39.131: ERROR/System(52): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
08-01 09:10:39.131: ERROR/System(52): at android.os.ServiceManager.addService(ServiceManager.java:72)
08-01 09:10:39.131: ERROR/System(52): at com.android.server.ServerThread.run(SystemServer.java:176)
08-01 09:10:39.131: ERROR/AndroidRuntime(52): Crash logging skipped, no checkin service
08-01 09:10:45.905: ERROR/ActivityThread(93): Failed to find provider info for android.server.checkin
08-01 09:10:47.001: ERROR/ActivityThread(93): Failed to find provider info for android.server.checkin
08-01 09:10:47.101: ERROR/ActivityThread(93): Failed to find provider info for android.server.checkin
08-01 09:10:49.741: ERROR/MediaPlayerService(31): Couldn't open fd for content://settings/system/notification_sound
08-01 09:10:49.741: ERROR/MediaPlayer(52): Unable to to create media player
08-01 09:10:54.871: ERROR/AndroidRuntime(124): ERROR: thread attach failed
08-01 09:10:59.001: ERROR/AndroidRuntime(179): ERROR: thread attach failed
08-01 09:10:59.980: ERROR/AndroidRuntime(220): Uncaught handler: thread main exiting due to uncaught exception
08-01 09:10:59.991: ERROR/AndroidRuntime(220): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.testBlueTooth/com.testBlueTooth.testBlueTooth}: java.lang.NullPointerException
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.os.Handler.dispatchMessage(Handler.java:99)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.os.Looper.loop(Looper.java:123)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at android.app.ActivityThread.main(ActivityThread.java:4363)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at java.lang.reflect.Method.invokeNative(Native Method)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at java.lang.reflect.Method.invoke(Method.java:521)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
08-01 09:10:59.991: ERROR/AndroidRuntime(220): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

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