com.mridang.throttle

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// java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mridang.throttle/com.mridang.throttle.SettingsActivity}: java.lang.NullPointerException: Attempt to read from field 'int com.mridang.colorpicker.ColorPreference.mNumColumns' on a null object reference
//  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
//  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
//  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077)
//  at android.app.ActivityThread.-wrap15(ActivityThread.java)
//  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350)
//  at android.os.Handler.dispatchMessage(Handler.java:102)
//  at android.os.Looper.loop(Looper.java:148)
//  at android.app.ActivityThread.main(ActivityThread.java:5417)
//  at java.lang.reflect.Method.invoke(Native Method)
//  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
//  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
// Caused by: java.lang.NullPointerException: Attempt to read from field 'int com.mridang.colorpicker.ColorPreference.mNumColumns' on a null object reference
//  at com.mridang.colorpicker.ColorPreference.access$000(ColorPreference.java:33)
//  at com.mridang.colorpicker.ColorPreference$ColorDialogFragment.onCreateDialog(ColorPreference.java:177)
//  at android.app.DialogFragment.getLayoutInflater(DialogFragment.java:407)
//  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:973)
//  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1148)
//  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1130)
//  at android.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1953)
//  at android.app.FragmentController.dispatchActivityCreated(FragmentController.java:152)
//  at android.app.Activity.performCreateCommon(Activity.java:6245)
//  at android.app.Activity.performCreate(Activity.java:6253)
//  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
//  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
//  ... 10 more