android - My TabHost HAS a FrameLayout with that id -

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this code:

tabhost = (fragmenttabhost) findviewbyid(r.id.tabhost);     tabhost.setup(this, getsupportfragmentmanager(), r.id.tabcontent);     tabhost.addtab(tabhost.newtabspec("tab1").setindicator("lengüeta 1"),             tab1.class, null);     tabhost.addtab(tabhost.newtabspec("tab2").setindicator("lengüeta 2"),             tab2.class, null);     tabhost.addtab(tabhost.newtabspec("tab3").setindicator("lengüeta 3"),             tab3.class, null);

in xml:

<android.support.v4.app.fragmenttabhost  xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/tabhost"     android:layout_width="match_parent"     android:layout_height="match_parent">     <linearlayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical">         <tabwidget             android:id="@android:id/tabs"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:orientation="horizontal"/>         <framelayout             android:id="@+id/tabcontent"             android:layout_width="match_parent"             android:layout_height="0dp"/>     </linearlayout> </android.support.v4.app.fragmenttabhost>

i getting exception:

08:07:22.353    1970-1970/com.infaplic.lpi e/androidruntime﹕ fatal exception: main process: com.infaplic.lpi, pid: 1970 java.lang.runtimeexception: unable start activity componentinfo{my.package/my.package.activities.swipeactivity}: java.lang.runtimeexception: tabhost must have framelayout id attribute 'android.r.id.tabcontent'         @ android.app.activitythread.performlaunchactivity(activitythread.java:2263)         @ android.app.activitythread.handlelaunchactivity(activitythread.java:2313)         @ android.app.activitythread.access$800(activitythread.java:144)         @ android.app.activitythread$h.handlemessage(activitythread.java:1246)         @ android.os.handler.dispatchmessage(handler.java:106)         @ android.os.looper.loop(looper.java:136)         @ android.app.activitythread.main(activitythread.java:5212)         @ java.lang.reflect.method.invokenative(native method)         @ java.lang.reflect.method.invoke(method.java:515)         @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:786)         @ com.android.internal.os.zygoteinit.main(zygoteinit.java:602)         @ dalvik.system.nativestart.main(native method) caused by: java.lang.runtimeexception: tabhost must have framelayout id attribute 'android.r.id.tabcontent'         @ android.widget.tabhost.setup(tabhost.java:163)         @ android.support.v4.app.fragmenttabhost.setup(fragmenttabhost.java:197)         @ com.infaplic.lpi.activities.swipeactivity.oncreate(swipeactivity.java:59)         @ android.app.activity.performcreate(activity.java:5240)         @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1088)         @ android.app.activitythread.performlaunchactivity(activitythread.java:2227)

             @ android.app.activitythread.handlelaunchactivity(activitythread.java:2313)              @ android.app.activitythread.access$800(activitythread.java:144)             at android.app.activitythread$h.handlemessage(activitythread.java:1246)             at android.os.handler.dispatchmessage(handler.java:106)             at android.os.looper.loop(looper.java:136)             at android.app.activitythread.main(activitythread.java:5212)             at java.lang.reflect.method.invokenative(native method)             at java.lang.reflect.method.invoke(method.java:515)             at com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:786)             at com.android.internal.os.zygoteinit.main(zygoteinit.java:602)             at dalvik.system.nativestart.main(native method)

i have tried changing id attribute "android.r.id.tabcontent". tried delete r class, , of course clean , rebuild. rid of exception in 2015...?

as stacktrace says, android:id attribute has not @+id/tabcontent, @android:id/tabcontent


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