Ref: https://github.com/JuliaOpt/JuMP.jl/issues/864
I can't seem to add package JuMP. Other packages seem to be added fine. How can I fix this? OS: Fedora 24 julia> versioninfo() Julia Version 0.6.0-dev.986 Commit 6c9f5af (2016-10-16 05:19 UTC) Platform Info: OS: Linux (x86_64-redhat-linux) CPU: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz WORD_SIZE: 64 BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell) LAPACK: libopenblas64_ LIBM: libopenlibm LLVM: libLLVM-3.7.1 (ORCJIT, broadwell) julia> Pkg.add("JuMP") INFO: Cloning cache of Calculus from https://github.com/johnmyleswhite/Calculus.jl.git INFO: Cloning cache of DataStructures from https://github.com/JuliaLang/DataStructures.jl.git INFO: Cloning cache of ForwardDiff from https://github.com/JuliaDiff/ForwardDiff.jl.git INFO: Cloning cache of JuMP from https://github.com/JuliaOpt/JuMP.jl.git ERROR: Cannot clone JuMP from https://github.com/JuliaOpt/JuMP.jl.git. SSL error: ffffffff - UNKNOWN ERROR CODE (0001) in prefetch(::String, ::String, ::Array{String,1}) at ./pkg/cache.jl:56 in resolve(::Dict{String,Base.Pkg.Types.VersionSet}, ::Dict{String,Dict{VersionNumber,Base.Pkg.Types.Available}}, ::Dict{String,Tuple{VersionNumber,Bool}}, ::Dict{String,Base.Pkg.Types.Fixed}, ::Dict{String,VersionNumber}, ::Set{String}) at ./pkg/entry.jl:512 in resolve(::Dict{String,Base.Pkg.Types.VersionSet}, ::Dict{String,Dict{VersionNumber,Base.Pkg.Types.Available}}, ::Dict{String,Tuple{VersionNumber,Bool}}, ::Dict{String,Base.Pkg.Types.Fixed}) at ./pkg/entry.jl:476 in edit(::Function, ::String, ::Base.Pkg.Types.VersionSet, ::Vararg{Base.Pkg.Types.VersionSet,N}) at ./pkg/entry.jl:30 in (::Base.Pkg.Entry.##2#5{String,Base.Pkg.Types.VersionSet})() at ./task.jl:363 in sync_end() at ./task.jl:314 in macro expansion at ./task.jl:330 [inlined] in add(::String, ::Base.Pkg.Types.VersionSet) at ./pkg/entry.jl:50 in (::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#add,Tuple{String}})() at ./pkg/dir.jl:31 in cd(::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#add,Tuple{String}}, ::String) at ./file.jl:69 in #cd#1(::Array{Any,1}, ::Function, ::Function, ::String, ::Vararg{Any,N}) at ./pkg/dir.jl:31 in add(::String) at ./pkg/pkg.jl:100