OCCBIN: Stochastic_solvers: Hessian is equal to zero

Hello everyone, I’m a starter in OCCBIN toolkit. I am trying to solve the simplest linear NK model at the ZLB and the model is log linearized from steady state. The code cannot run properly, can anyone help me with that? Thanks a lot!

What I want to do is to just add this constraint.

RE.mod (2.3 KB)

Please see

Thank you! I’ve solved this question!