I'm currently in a project writing a program for quadcopters to carry out swarm algorithms. Using examples provided, i have successful tried out the eye-bot functions available in ARGOS. While trying to write a loop function for the eye-bot(with reference to foraging example provided), the "make" process went well and no error was detected. During the process to run the .argos file, there is this error which pin points to an error on "undefined symbol"(Please see attach 1 for screenshot ). After some troubleshooting, i have pin point to the handle to the eye-bot entity and controller which are the ones giving such error(Please see attach 2 for screenshot ). Appreciate your guidance on what is the possible problem for this matter.