I finally found the bug. The issue come from model declaration in Resources part :
.Resources(resources => resources.Add(m => m.Creator.UserId)
Error comes from "Creator.UserId" which Sheculer does not like. So I modified my view model to integrate this information to avois this situation :
.Resources(resources => resources.Add(m => m.CreatorId)
Now it works. Please ote that "t is undefined" error still raising,
Thanks you for your help.