Error after removing the EditTextPreference

[AronSchnakenbeck]

Hi there,
thank you very much for the settings-using-preferences tutorial:

https://medium.com/@bhavyakaria/step-by-step-guide-to-create-app-settings-using-preferences-in-android-part-1-fa470305b530

While trying to adjust the tutorial i figured out the app crashes after removing the EditTextPreference in settings_pref.xml.

I get the following error message when I try to open the settings activity:

2021-04-08 11:12:14.711 18526-18526/sampleapplication.parzival.com.sampleapplication E/AndroidRuntime: FATAL EXCEPTION: main
    Process: sampleapplication.parzival.com.sampleapplication, PID: 18526
    java.lang.RuntimeException: Unable to start activity ComponentInfo{sampleapplication.parzival.com.sampleapplication/sampleapplication.parzival.com.sampleapplication.SettingsActivity}: android.view.InflateException: Binary XML file line #0 in sampleapplication.parzival.com.sampleapplication:layout/activity_settings: Binary XML file line #0 in sampleapplication.parzival.com.sampleapplication:layout/activity_settings: Error inflating class fragment
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3623)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3775)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2261)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:237)
        at android.app.ActivityThread.main(ActivityThread.java:8107)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
     Caused by: android.view.InflateException: Binary XML file line #0 in sampleapplication.parzival.com.sampleapplication:layout/activity_settings: Binary XML file line #0 in sampleapplication.parzival.com.sampleapplication:layout/activity_settings: Error inflating class fragment
     Caused by: android.view.InflateException: Binary XML file line #0 in sampleapplication.parzival.com.sampleapplication:layout/activity_settings: Error inflating class fragment
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.preference.Preference.setOnPreferenceChangeListener(android.support.v7.preference.Preference$OnPreferenceChangeListener)' on a null object reference
        at sampleapplication.parzival.com.sampleapplication.SettingsFragment.onCreatePreferences(SettingsFragment.java:39)
        at android.support.v7.preference.PreferenceFragmentCompat.onCreate(PreferenceFragmentCompat.java:224)
        at sampleapplication.parzival.com.sampleapplication.SettingsFragment.onCreate(SettingsFragment.java:92)
        at android.support.v4.app.Fragment.performCreate(Fragment.java:2339)
        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1377)
        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1640)
        at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1896)
        at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3673)
        at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:111)
        at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:338)
        at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39)
        at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:67)
        at android.view.LayoutInflater.tryCreateView(LayoutInflater.java:1069)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:997)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:961)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:659)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:534)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:481)
        at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
        at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
        at sampleapplication.parzival.com.sampleapplication.SettingsActivity.onCreate(SettingsActivity.java:14)
        at android.app.Activity.performCreate(Activity.java:7957)
2021-04-08 11:12:14.711 18526-18526/sampleapplication.parzival.com.sampleapplication E/AndroidRuntime:     at android.app.Activity.performCreate(Activity.java:7946)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3598)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3775)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        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:2261)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:237)
        at android.app.ActivityThread.main(ActivityThread.java:8107)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)

Do you know whats goning on?

Thanks!