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POUnable to instantiate fragment - InstantiationException
 

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    <p>I published a app on the play store and i am using ACRA for receiving crash reports. I'm getting a lot of these crash reports listed below, which i have never seen before although i tested the app a lot on a lot of devices.</p> <pre><code>java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.app/com.example.app.MainActivity}: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.example.app.fragments.InfoDetailFragment$1: make sure class name exists, is public, and has an empty constructor that is public at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2355) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2391) at android.app.ActivityThread.access$600(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1335) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:155) at android.app.ActivityThread.main(ActivityThread.java:5520) 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:1029) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796) at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Its always the fragment "InfoDetailFragment", which like all of my fragments subclasses a BaseFragment.</p> <pre><code>public static InfoDetailFragment createInstance(String title) { InfoDetailFragment frag = new InfoDetailFragment(); Bundle args = new Bundle(); args.putString(ARGS_TITLE, title); frag.setArguments(args); return frag; } public InfoDetailFragment() { super("InfoDetailFragment"); } </code></pre> <p>All my fragments are instantiated exactly the same, but the error only appears on this one. Any ideas or hints? Thanks a lot</p>
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    1. USsebastian
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    1. COIs this an orientation change issue ?http://stackoverflow.com/questions/8058809/fragment-activity-crashes-on-screen-rotate
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      1. USIanB
    2. COi thought so too at some point, but i cant reproduce this error with changing the orientation.
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      1. USsebastian
    3. COI have the very same problem. The Fragment I'm having problem with is in a separate class file as suggested by others http://stackoverflow.com/questions/16464645/java-lang-instantiationexception-cant-instantiate-class-no-empty-construct, but I still have the problem. Did you find out any solution to your problem?
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      1. USMagnus Johansson
 

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