在layout建立一个attrs.xml文件，在布局testinfo.xml 会报错

Question

error: Error: No resource found that matches the given name (at 'background' with value '@drawable/ok'). [2015-05-13 06:41:13 - example] [2015-05-13 06:41:13 - example] : error: Error: No resource found that matches the given name (at 'background' with value '@drawable/cancle').
attrs.xml

<!--
     Declare custom theme attributes that allow changing which styles are
     used for button bars depending on the API level.
     ?android:attr/buttonBarStyle is new as of API 11 so this is
     necessary to support previous API levels.
-->
<declare-styleable name="ButtonBarContainerTheme">
    <attr name="buttonBarStyle" format="reference" />
    <attr name="buttonBarButtonStyle" format="reference" />
</declare-styleable>

testinfo.xml
<?xml version="1.0" encoding="utf-8"?>
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
android:id="@+id/testlist"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="4"
>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:background="@drawable/bg" >

    <LinearLayout
        android:id="@+id/testlinear"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="25dp"
        android:layout_marginRight="25dp"
        android:layout_marginTop="5dp"
        android:background="@drawable/bg"
        android:orientation="vertical" 
        android:gravity="bottom">
    </LinearLayout>
</ScrollView>

android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="bottom"
android:layout_weight="1"
android:orientation="horizontal"
android:background="@drawable/share_bg_tab_normal"
>
android:id="@+id/ok"
android:layout_marginLeft="15dp"
android:layout_marginRight="30dp"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingLeft="10dp"
android:paddingRight="5dp"
android:paddingBottom="6dp"
android:layout_weight="1"
android:paddingTop="6dp"
android:background="@drawable/ok"
/>
android:layout_marginLeft="30dp"
android:layout_marginRight="15dp"
android:id="@+id/cancle"
android:paddingLeft="5dp"
android:paddingRight="10dp"
android:paddingBottom="6dp"
android:paddingTop="6dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:background="@drawable/cancle"
/>

Answer 1

 @drawable/ok
 @drawable/cancle
 检查一下这两个资源文件在对应的drawable目录下有没有