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POClass extending Fragment - error says make sure class name exists, is public, and has an empty constructor that is public
 

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  1. POClass extending Fragment - error says make sure class name exists, is public, and has an empty constructor that is public
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    <p>I have a class like this:</p> <pre><code>class TopicFragment extends Fragment{ public TopicFragment(VO vO) { // some code } } </code></pre> <p>Users are reporting that the app is crashing and the log says this:</p> <pre><code> android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.aaa.wert.TopicFragment: make sure class name exists, is public, and has an empty constructor that is public </code></pre> <p>I have looked into this links but i am not able to solve this;</p> <p><a href="https://stackoverflow.com/questions/10450348/do-fragments-really-need-an-empty-constructor">Do fragments really need an empty constructor?</a></p> <p><a href="https://stackoverflow.com/questions/16062923/fragment-instantiationexception-no-empty-constructor-google-maps-v2">Fragment - InstantiationException: no empty Constructor -&gt; Google Maps v2?</a></p> <p>Please help me with this.</p>
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    1. COYou should post the code that instantiates this Fragment as well. Also, why TopicFragment itself is not public?
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    2. COWell, first of all, change your fragment constructor and make it empty with no parameters also. Then set TopicFragment as public. Then, please post your complete code.
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