grisu issue

[EdwinMeriaux]

hi! I've been using JuMPeR for Robust optimization and I have issue with Grisu (LoadError: UndefVarError: Grisu not defined).

I tried to solve it like this:

using Pkg
Pkg.add("JuMPeR")

Pkg.add("Grisu")

if isdefined(Base, :Grisu)
import Base.Grisu
else
import Grisu
end

using JuMPeR

and it's still not working. would you know how to solve it?