Android-sqlist simple error

1. When running the program:
[11:17:42-layout_01]
Error in an XML file: Aborting build.
The solution is to run clean in the project!
That is to say, my program cannot be automatically compiled,
Use clean to forcibly clear the configuration files, and the new achievements will be correct.
Then the program runs. 2. The jump between simple activities has an error. That is because the otheractivity to be redirected is not in androidmanifest. add a line of code: <activity Android: Name = ". otheractivity "Android: Label =" @ string/other "/>