1. Compilation of the simulator for RTCP-net fails with message Code Text or - what does it mean?

Compilation of the simulator for RTCP-net fails with message Code Text or - what does it mean?

It means that the compiler cannot find the Tools.jar library in your current Java Runtime directory. The easiest solution is to copy Tools.jar library *usually found in the <JDK>/lib directory) to the <JRE>/lib directory.