I have a very complex model with 100+ lines of code (which I cannot share - sorry), I do get this error below
“Rejecting initial value:”
 " Gradient evaluated at the initial value is not finite."
 " Stan can’t start sampling from this initial value."
 "Initialization between (-2, 2) failed after 100 attempts. "
I cannot see any parameters that are bound between -2 and 2. Is there a way for stan to be more explicit about the affected parameter?