Hi Steven,
I also tried a = Array{String}() unfortunately it produces errors as well. julia> a = Array{String}() WARNING: Base.String is deprecated, use AbstractString instead. likely near no file:0 0-dimensional Array{AbstractString,0}: #undef julia> for k in keys(dict) if dict[k] < 2 continue end push!(a, k) end ERROR: MethodError: `push!` has no method matching push!(::Array{ AbstractString,0}, ::ASCIIString) Closest candidates are: push!(::Any, ::Any, ::Any) push!(::Any, ::Any, ::Any, ::Any...) push!(::Array{Any,1}, ::ANY) ... [inlined code] from none:5 in anonymous at no file:0