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Fragment xml android:fragment="${packageName}.${activityClass}$GeneralPreferenceFragment"

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http://stackoverflow.com – I have problem with: android.app.Fragment$InstantiationException: Unable to instantiate fragment ${packageName}.${activityClass}$GeneralPreferenceFragment The xml layout not working: <preference-headers xmlns:android="http://schemas.android.com/apk/res/android" > <!-- These settings headers are only used on tablets. --> <header android:fragment="${packageName}.${activityClass}$GeneralPreferenceFragment" android:title="@string/pref_header_general" /> This works though: <preference-headers xmlns:android="http://schemas.android.com/apk/res/android" > < (HowTos)