java.lang.NullPointerException

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    • java.lang.NullPointerException at com.abdul.moqueet.unitconverter.MainFragment$1$1.afterTextChanged(MainFragment.java:141) at android.widget.TextView.sendAfterTextChanged(TextView.java:7247) at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:8891) at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:970) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:497) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30) at android.text.method.NumberKeyListener.onKeyDown(NumberKeyListener.java:121) at android.widget.TextView.doKeyDown(TextView.java:5385) at android.widget.TextView.onKeyDown(TextView.java:5204) at android.view.KeyEvent.dispatch(KeyEvent.java:2609) at android.view.View.dispatchKeyEvent(View.java:7205) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.widget.ScrollView.dispatchKeyEvent(ScrollView.java:353) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1920) at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1395) at android.app.Activity.dispatchKeyEvent(Activity.java:2370) at android.support.v7.app.AppCompatActivity.dispatchKeyEvent(AppCompatActivity.java:524) at android.support.v7.view.WindowCallbackWrapper.dispatchKeyEvent(WindowCallbackWrapper.java:50) at android.support.v7.app.AppCompatDelegateImplBase$AppCompatWindowCallbackBase.dispatchKeyEvent(AppCompatDelegateImplBase.java:241) at android.support.v7.view.WindowCallbackWrapper.dispatchKeyEvent(WindowCallbackWrapper.java:50) at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1847) at android.view.ViewRootImpl.deliverKeyEventPostIme(ViewRootImpl.java:3701) at android.view.ViewRootImpl.deliverKeyEvent(ViewRootImpl.java:3626) at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3161) at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4292) at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4271) at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:2976) 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)
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