Does not working using ProGuard?

[GoogleCodeExporter]

What steps will reproduce the problem?

1. Create an Android application using the log4j logging as you described in 
the documentation in the Using log4j directly section.
2. Run the application on the phone in debug mode and the logging is working.
3. Export the Android application using Proguard and it gives unresolvable 
warnings about the log4j classes (I presume that's because they are simple Java 
classes and not "Android Java" classes).

Any suggestions?

Thanks.
Daniel

Original issue reported on code.google.com by daniel.s...@gmail.com on 19 Jan 2013 at 1:42