I am learning Cube by myself and wanted to replicate the Cubetown Analyst Demonstration Model. I can run the model from the Cubetown catalogue but the application does not run when I import or build it in a catalogue of my own. This is happening despite entering the keys correctly. The program I am particularly facing issues with is the Highway Program. Whenever I run it, it returns the message that highway program has failed. I would be really grateful if anyone could point out the reason(s) behind this issue and what I should do to solve it.