Error message when trying to run the MySQL tutorial project

[SCIS]

I get this error:
javac 1.7.0_13
src\anywheresoftware\b4a\samples\mysql\httpjob.java:8: error: cannot find symbol
public class httpjob extends B4AClass.ImplB4AClass{
^
symbol: class ImplB4AClass
location: class B4AClass
Note: src\anywheresoftware\b4a\samples\mysql\httputils2service.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error

When I want to run the MySQL tutorial project. How can I solve this?
When I was working on it at school, this didn't happen. I could just compile and run it.
When school ended, I placed the folder in Dropbox, went home and installed Basic4Android, Java JDK and Android SDK again because I just had a clean install of Windows 7 Pro a few days ago, wanted to work on it here and like you see, I can't compile and run it now.

Thanks in advance,
SCIS.

 

[SCIS]

Bump. Please, I need urgent help because I can't proceed now.

 

[SCIS]

Fixed this by reinstalling Basic4Android, problem is that I copied my old libraries of an older version of B4A over my new version's libraries.