Hello everyone,
I was facing a similar issue when I tried optimising MimiDICE2016R2 this summer. OptiMimi did not work because installing the package in my Julia environment forcefully downgraded my Mimi version:
Hence, I let myself be inspired by the code for Budolfson et al. (2021) and created my own fork of MimiDICE2016R2 (OptMimiDICE2016R2) which has an in-built optimise_model function. Maybe that’s helpful to some people landing in this forum!
Cheers!