java.lang.IllegalArgumentException: Unknown URI content:

[Android问题哥]

复制源项目program1，粘贴更名为program2。
更改AndroidManifest.xml：
program1中<provider android:name="com.coperator.db.DBProvider"
android:authorities="com.coperator.db">

program2中<provider android:name="com.coperator.db.DBProvider"
android:authorities="com.program2.coperator.db">

当program1和program2安装在同一个模拟器中运行时，出错了：

04-18 01:34:36.591: E/DatabaseUtils(833): Writing exception to parcel
04-18 01:34:36.591: E/DatabaseUtils(833): java.lang.IllegalArgumentException: Unknown URI content://com.coperator.db/accounts
04-18 01:34:36.591: E/DatabaseUtils(833): at com.coperator.db.DBProvider.delete(DBProvider.java:286)
04-18 01:34:36.591: E/DatabaseUtils(833): at android.content.ContentProvider$Transport.delete(ContentProvider.java:222)
04-18 01:34:36.591: E/DatabaseUtils(833): at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:186)
04-18 01:34:36.591: E/DatabaseUtils(833): at android.os.Binder.execTransact(Binder.java:320)
04-18 01:34:36.591: E/DatabaseUtils(833): at dalvik.system.NativeStart.run(Native Method)

忘高手给点指示和解决的方法，谢谢！！！

[「已注销」]

program1中<provider android:name="com.coperator.db.DBProvider" android:authorities="com.coperator.db"> program2中<provider android:name="com.coperator.db.DBProvider" android:authorities="com.program2.coperator.db"> 你把包结构改了？ 一个三层一个四层 程序里的路径也要改啊

[Android问题哥]

public static final String AUTHORITY = "com.program2.coperator.db"; 是这行吗？