Vá em robocodedrools\robocode\robots, Right click no arquivo importado e "Extract Here..." (Sobrescreva a pasta META-INF) Copie a pasta exemplodrools\robocode-drools\reglas e todos os arquivos .java ...
To persist data accross multiple sessions, create folders where Robocode can store robot data and configuration files. A good place to pick is $HOME/.robocode (but ...