TabHost创设老是报错

TabHost创建老是报错
只是拖了一个Tabhost控件，LinearLayout那里就一直飘红，带着大红叉，求~~~
<?xml version="1.0" encoding="utf-8"?>
    <TabHost
        xmlns:android1="http://schemas.android.com/apk/res/android"
        android1:id="@android:id/tabhost"
        android1:layout_width="match_parent"
        android1:layout_height="match_parent" >

        <LinearLayout
            android1:layout_width="match_parent"
            android1:layout_height="match_parent"
            android1:orientation="vertical" >

            <TabWidget
                android1:id="@android:id/tabs"
                android1:layout_width="match_parent"
                android1:layout_height="wrap_content" >
            </TabWidget>

            <FrameLayout
                android1:id="@android:id/tabcontent"
                android1:layout_width="match_parent"
                android1:layout_height="match_parent" >

                <LinearLayout
                    android1:id="@+id/tab1"
                    android1:layout_width="match_parent"
                    android1:layout_height="match_parent" >
                </LinearLayout>

                <LinearLayout

                    android1:id="@+id/tab2"
                    android1:layout_width="match_parent"
                    android1:layout_height="match_parent" >
                </LinearLayout>

                <LinearLayout
                    android1:id="@+id/tab3"
                    android1:layout_width="match_parent"
                    android1:layout_height="match_parent" >
                </LinearLayout>
            </FrameLayout>
        </LinearLayout>
    </TabHost>

Android tabhost 布局
[解决办法]
我试过了，我的没飘红，刷新下project，重新编译一下啥的。