# Can't install any convex hull packages under 0.6.4
**URL:** https://discourse.julialang.org/t/cant-install-any-convex-hull-packages-under-0-6-4/16245
**Category:** Geo
**Tags:** convex-hull
**Created:** [October 12, 2018, 6:25pm UTC](https://discourse.julialang.org/t/cant-install-any-convex-hull-packages-under-0-6-4/16245 "2018-10-12T18:25:31Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Arrigo\_Benedetti](https://discourse.julialang.org/u/Arrigo_Benedetti)
#### Post date: [October 12, 2018, 6:25pm UTC](https://discourse.julialang.org/t/cant-install-any-convex-hull-packages-under-0-6-4/16245/1 "2018-10-12T18:25:32Z")
I have tried to install both ConvexHull.jl and QHull.jl for convex hull computations under Julia 0.6.4 running on Windows 10 and they both fail to install:
```julia
julia> Pkg.add("ConvexHull")
ERROR: unknown package ConvexHull
macro expansion at .\pkg\entry.jl:53 [inlined]
(::Base.Pkg.Entry.##1#3{String,Base.Pkg.Types.VersionSet})() at .\task.jl:335
Stacktrace:
[1] sync_end() at .\task.jl:287
[2] macro expansion at .\task.jl:303 [inlined]
[3] add(::String, ::Base.Pkg.Types.VersionSet) at .\pkg\entry.jl:51
[4] (::Base.Pkg.Dir.##4#7{Array{Any,1},Base.Pkg.Entry.#add,Tuple{String}})() at .\pkg\dir.jl:36
[5] cd(::Base.Pkg.Dir.##4#7{Array{Any,1},Base.Pkg.Entry.#add,Tuple{String}}, ::String) at .\file.jl:59
[6] #cd#1(::Array{Any,1}, ::Function, ::Function, ::String, ::Vararg{String,N} where N) at .\pkg\dir.jl:36
[7] add(::String) at .\pkg\pkg.jl:117
```
I opened a new issue for both packages but in the meanwhile I thought I would check here too… Any ideas?
-Arrigo
---
### Author:  [@ImreSamu](https://discourse.julialang.org/u/ImreSamu)
#### Post date: [October 12, 2018, 6:38pm UTC](https://discourse.julialang.org/t/cant-install-any-convex-hull-packages-under-0-6-4/16245/2 "2018-10-12T18:38:53Z")
[https://github.com/JuliaPolyhedra/ConvexHull.jl/issues/11#issuecomment-429418512](https://github.com/JuliaPolyhedra/ConvexHull.jl/issues/11#issuecomment-429418512)