[blu28]

I am not at the RoboRio, so I can't test this, but my understanding is that the code that is downloaded as Java onto the RoboRio runs as a specific user which is not the administrator. Since the RoboRio is running Linux most of the file system is going to owned by the root user. So, you need to use a file path for the configuration file that is accessible to a non-root user. I might suggest trying out "/var/tmp/configfile" as a first attempt.