projman #13919 Projman doesn't work with libgecode17 (3.1.0-1) [open]

I can compile the C++ parts with python setup but when running projman, I get:

File "/home/ocy/lglb/code/projman/scheduling/csp.py", line 265, in schedule
    solve( pb )
RuntimeError: Space::constrain: Attempt to use undefined constrain function