app crashing - java.lang.IllegalStateException - Fragment com.myapp.android.MyAppActivity did not create a view -


i have activity extends sherlockfragmentactivity , implements actionbar.tablistener.

here's xml looks like:

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:id="@+id/fragment_layout"     tools:context=".myappactivity" >       <fragment         android:id="@+id/tab_content"         android:layout_width="match_parent"         android:layout_height="match_parent"         android:layout_weight="1"         android:name="com.myapp.android.myappwebviewfragment" />          </linearlayout>

it's crashing on setcontentview, activity_welcome xml given above.

    @suppresslint("setjavascriptenabled")     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);          setcontentview(r.layout.activity_welcome); ...

java.lang.illegalstateexception in myappactivity.java:154 fragment com.myapp.android.myappactivity did not create view.

here's fragment's oncreateview looks like:

    public class myappwebviewfragment extends sherlockfragment{     ...     @override     public view oncreateview(layoutinflater inflater, viewgroup container,         bundle savedinstancestate)     {         view web = inflater.inflate(r.layout.myapp_webview_fragment, container, false);         pulltorefreshview = (pulltorefreshwebview) web.findviewbyid(r.id.tab_content);                  return web;     }        public void onviewcreated(view view, bundle savedinstancestate) {         super.onviewcreated(view, savedinstancestate);           final activity activity = getactivity();          if(url != null){             ... }

any idea why might happening?

edit

stack trace:

java.lang.illegalstateexception: fragment com.myapp.android.myappwebviewfragment did not create view.     fragmentactivity.java:303 • android.support.v4.app.fragmentactivity.oncreateview     layoutinflater.java:563 • android.view.layoutinflater.createviewfromtag     layoutinflater.java:623 • android.view.layoutinflater.rinflate     layoutinflater.java:408 • android.view.layoutinflater.inflate     layoutinflater.java:320 • android.view.layoutinflater.inflate     layoutinflater.java:276 • android.view.layoutinflater.inflate     actionbarsherlockcompat.java:840 • com.actionbarsherlock.internal.actionbarsherlockcompat.setcontentview     sherlockfragmentactivity.java:262 • com.actionbarsherlock.app.sherlockfragmentactivity.setcontentview     myappactivity.java:154 • com.myapp.android.myappactivity.oncreate     instrumentation.java:1047 • android.app.instrumentation.callactivityoncreate     activitythread.java:1617 • android.app.activitythread.performlaunchactivity     activitythread.java:1669 • android.app.activitythread.handlelaunchactivity     activitythread.java:117 • android.app.activitythread.access$1500     activitythread.java:937 • android.app.activitythread$h.handlemessage     handler.java:99 • android.os.handler.dispatchmessage     looper.java:130 • android.os.looper.loop     activitythread.java:3692 • android.app.activitythread.main     method.java:-2 • java.lang.reflect.method.invokenative     method.java:507 • java.lang.reflect.method.invoke     zygoteinit.java:842 • com.android.internal.os.zygoteinit$methodandargscaller.run     zygoteinit.java:600 • com.android.internal.os.zygoteinit.main     nativestart.java:-2 • dalvik.system.nativestart.main


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