Add a package of low version

I asked about downloading a low-version package yesterday, that is, I want to add a package Pkg.add(Pkg.PackageSpec(url=“GitHub - jbmuir/EnsembleKalmanInversion.jl: Ensemble Kalman Inversion in Julia”)) The error is as shown in the picture

How can I solve this problem
Best wishes wo you

I think this package has a local dependency the package author didn’t make public. You should contact the author about how to get it working.

Note, this package is unregistered. It’s not a failure of Julia’s package registration or compatability practices.

Thank you !