java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.splitproject/com.example.android.splitproject.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.viewpager2.widget.ViewPager2.setAdapter(androidx.recyclerview.widget.RecyclerView$Adapter)' on a null object reference

[PavithaSubramaniyan]

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.android.splitproject, PID: 10809 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.splitproject/com.example.android.splitproject.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.viewpager2.widget.ViewPager2.setAdapter(androidx.recyclerview.widget.RecyclerView$Adapter)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7656) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.viewpager2.widget.ViewPager2.setAdapter(androidx.recyclerview.widget.RecyclerView$Adapter)' on a null object reference at com.example.android.splitproject.MainActivity.onCreate(MainActivity.kt:22) at android.app.Activity.performCreate(Activity.java:8000) at android.app.Activity.performCreate(Activity.java:7984) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)  at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)  at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:223)  at android.app.ActivityThread.main(ActivityThread.java:7656)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)  I/Process: Sending signal. PID: 10809 SIG: 9