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 9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
            at andrid.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NullPointerException
            at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20)
            at android.app.Activity.performCreate(Activity.java:5104)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)

 9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NullPointerException
            at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20)
            at android.app.Activity.performCreate(Activity.java:5104)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)

> 9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
>    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException
>            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
>            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
>            at android.app.ActivityThread.access$600(ActivityThread.java:141)
>            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
>            at android.os.Handler.dispatchMessage(Handler.java:99)
>            at android.os.Looper.loop(Looper.java:137)
>            at android.app.ActivityThread.main(ActivityThread.java:5041)
>            at java.lang.reflect.Method.invokeNative(Native Method)
>            at java.lang.reflect.Method.invoke(Method.java:511)
>            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
>            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
>            at dalvik.system.NativeStart.main(Native Method)
>     Caused by: java.lang.NullPointerException
>            at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20)
>            at android.app.Activity.performCreate(Activity.java:5104)
>            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
>            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
>            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
>            at android.app.ActivityThread.access$600(ActivityThread.java:141)
>            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
>            at android.os.Handler.dispatchMessage(Handler.java:99)
>            at android.os.Looper.loop(Looper.java:137)
>            at android.app.ActivityThread.main(ActivityThread.java:5041)
>            at java.lang.reflect.Method.invokeNative(Native Method)
>            at java.lang.reflect.Method.invoke(Method.java:511)
>            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
>            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
>            at dalvik.system.NativeStart.main(Native Method)

 9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
            at andrid.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NullPointerException
            at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20)
            at android.app.Activity.performCreate(Activity.java:5104)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)

9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) at android.app.ActivityThread.access$600(ActivityThread.java:141) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5041) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20) at android.app.Activity.performCreate(Activity.java:5104) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) at android.app.ActivityThread.access$600(ActivityThread.java:141) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5041) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) at dalvik.system.NativeStart.main(Native Method)

> 9892-9892/com.mycompany.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
>    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myfirstapp/com.mycompany.myfirstapp.TabActivity}: java.lang.NullPointerException
>            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
>            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
>            at android.app.ActivityThread.access$600(ActivityThread.java:141)
>            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
>            at android.os.Handler.dispatchMessage(Handler.java:99)
>            at android.os.Looper.loop(Looper.java:137)
>            at android.app.ActivityThread.main(ActivityThread.java:5041)
>            at java.lang.reflect.Method.invokeNative(Native Method)
>            at java.lang.reflect.Method.invoke(Method.java:511)
>            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
>            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
>            at dalvik.system.NativeStart.main(Native Method)
>     Caused by: java.lang.NullPointerException
>            at com.mycompany.myfirstapp.TabActivity.onCreate(TabActivity.java:20)
>            at android.app.Activity.performCreate(Activity.java:5104)
>            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
>            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
>            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
>            at android.app.ActivityThread.access$600(ActivityThread.java:141)
>            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
>            at android.os.Handler.dispatchMessage(Handler.java:99)
>            at android.os.Looper.loop(Looper.java:137)
>            at android.app.ActivityThread.main(ActivityThread.java:5041)
>            at java.lang.reflect.Method.invokeNative(Native Method)
>            at java.lang.reflect.Method.invoke(Method.java:511)
>            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
>            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
>            at dalvik.system.NativeStart.main(Native Method)