Error while using locally

[PhoenixCodingStuff]

Using the converter locally gives an error and closes the terminal before you can even read the error, so there is no way to know if the converter is broken or if you have made some error. I am using a fixed version of https://www.planetminecraft.com/texture-pack/slimefun-texture-by-raulh22/ [I read a previous issue about duplicated custom models and "none" custom models] and I fixed that in a fork.