android - Fatal Error that I can't solve-list -

while developing android application had error:

"unable start activity component info :x . runtimeexcepetion : content must have list . view id  attribue 'android.r.id.list'  

i have list in xml file.

in java class looks like:

arraylist<hashmap<string, string>> mylist = new arraylist<hashmap<string, string>>(); hashmap<string, string> map = new hashmap<string, string>(); 

someone can me please?

have got in xml file?

    <listview     android:id="@android:id/list"     android:layout_width="fill_parent"     android:layout_height="wrap_content"/>