I have posted the error below, I am new to Julia and would take any suggestions on interpreting/fixing it:

MethodError: no method matching kron(::Array{JuMP.GenericAffExpr{Float64,JuMP.Variable},2}, ::UniformScaling{Int64})

Closest candidates are:

kron(::Any, ::Any, ::Any, ::Any…) at operators.jl:424

kron(::Union{Array{T,1}, Array{T,2}} where T, ::SparseMatrixCSC) at sparse\linalg.jl:785

kron(::AbstractArray{T,2}, ::AbstractArray{S,2}) where {T, S} at linalg\dense.jl:313