android.util.AndroidRuntimeException: requestFeature() must be called before adding contentvat com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:302) at com.android.internal.app.AlertController.installContent(AlertController.java:233)

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requestFeature() must be called before adding contentvat com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:302) at com.android.internal.app.AlertController.installContent(AlertController.java:233)
android.util.AndroidRuntimeException: requestFeature() must be called before adding contentvat com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:302) at com.android.internal.app.AlertController.installContent(AlertController.java:233)
at android.app.AlertDialog.onCreate(AlertDialog.java:356)
at android.app.Dialog.dispatchOnCreate(Dialog.java:373)
at android.app.Dialog.show(Dialog.java:274)
at android.app.DialogFragment.onStart(DialogFragment.java:490)
at android.app.Fragment.performStart(Fragment.java:2077)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:922)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
at android.app.BackStackRecord.run(BackStackRecord.java:834)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1452)
at android.app.FragmentManagerImpl$1.run(FragmentManager.java:447)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)

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