我跟随导师：“http://www.vogella.de/articles/AndroidSQLite/article.html”，de.vogella.android.todos
但点击“确认”后会收到此异常：
ERROR/AndroidRuntime(473): java.lang.RuntimeException: Unable to pause activity {com.test.todo/com.test.todo.TodoDetailActivity}: java.lang.IllegalArgumentException: Unknown URL content://de.vogella.android.todos.contentprovider/todos
ERROR/AndroidRuntime(473): Caused by: java.lang.IllegalArgumentException: Unknown URL content://de.vogella.android.todos.contentprovider/todos