traffic project does not compile (warnings, error) under eiffelstudio 7.1

[Former user]

when trying to run class PREVIEW I get ..EIFGENS\objects\W_code\objects.exe is missing.

using Wndows XP.

[Nadia Polikarpova]

This looks like a C compilation problem (C compilation did not succeed or wasn't even started, so the exe file was not created). Most likely it has nothing to do with traffic. Please try to freeze or clean-compile (but not finalize!) the project, and then refer to the "Outputs" tab to see the if the C compilation succeeded.