# IJulia install error (after installing Juno Atom IDE)

**URL:** <https://discourse.julialang.org/t/ijulia-install-error-after-installing-juno-atom-ide/22670>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [April 3, 2019, 1:45am UTC](https://discourse.julialang.org/t/ijulia-install-error-after-installing-juno-atom-ide/22670 "2019-04-03T01:45:29Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Erwin\_Kalvelagen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/erwin_kalvelagen/32/7773_2.png) [@Erwin\_Kalvelagen](https://discourse.julialang.org/u/Erwin_Kalvelagen)\
**Post date:** [April 3, 2019, 1:45am UTC](https://discourse.julialang.org/t/ijulia-install-error-after-installing-juno-atom-ide/22670/1 "2019-04-03T01:45:29Z")

</div>

I installed Julia Version 1.1.0 (2019-01-21). Subsequently I installed Julia packages for Atom (including atom-julia-client).

Now, I try to install IJulia. However I get:

> julia\> Pkg.add(“IJulia”)  
> Updating registry at `C:\Users\Erwin\.julia\registries\General`  
> Updating git-repo `https://github.com/JuliaRegistries/General.git`  
> Resolving package versions…  
> ERROR: Unsatisfiable requirements detected for package ASTInterpreter2 [e6d88f4b]:  
> ASTInterpreter2 [e6d88f4b] log:  
> ├─possible versions are: 0.1.0-0.1.1 or uninstalled  
> ├─restricted by julia compatibility requirements to versions: uninstalled  
> └─restricted by compatibility requirements with Atom [c52e3926] to versions: 0.1.0-0.1.1 — no versions left  
> └─Atom [c52e3926] log:  
> ├─possible versions are: [0.1.0-0.1.1, 0.2.0-0.2.1, 0.3.0, 0.4.0-0.4.6, 0.5.0-0.5.10, 0.6.0-0.6.17, 0.7.0-0.7.15, 0.8.0-0.8.3] or uninstalled  
> └─restricted to versions 0.7.15 by an explicit requirement, leaving only versions 0.7.15  
> Stacktrace:  
> [1] #propagate\_constraints!#61(::Bool, ::Function, ::Pkg.GraphType.Graph, ::Set{Int64}) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\GraphType.jl:1005  
> [2] propagate\_constraints! at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\GraphType.jl:946 [inlined]  
> [3] #simplify\_graph!#121(::Bool, ::Function, ::Pkg.GraphType.Graph, ::Set{Int64}) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\GraphType.jl:1460  
> [4] simplify\_graph! at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\GraphType.jl:1460 [inlined]  
> [5] resolve\_versions!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Nothing) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\Operations.jl:371  
> [6] resolve\_versions! at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\Operations.jl:315 [inlined]  
> [7] #add\_or\_develop#63(::Array{Base.UUID,1}, ::Symbol, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\Operations.jl:1171  
> [8] #add\_or\_develop at .\none:0 [inlined]  
> [9] #add\_or\_develop#15(::Symbol, ::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:54  
> [10] #add\_or\_develop at .\none:0 [inlined]  
> [11] #add\_or\_develop#14 at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:31 [inlined]  
> [12] #add\_or\_develop at .\none:0 [inlined]  
> [13] #add\_or\_develop#13 at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:29 [inlined]  
> [14] #add\_or\_develop at .\none:0 [inlined]  
> [15] #add\_or\_develop#12(::Base.Iterators.Pairs{Symbol,Symbol,Tuple{Symbol},NamedTuple{(:mode,),Tuple{Symbol}}}, ::Function, ::String) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:28  
> [16] #add\_or\_develop at .\none:0 [inlined]  
> [17] #add#20 at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:59 [inlined]  
> [18] add(::String) at C:\cygwin\home\Administrator\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.1\Pkg\src\API.jl:59  
> [19] top-level scope at none:0

I see there is some versioning problem, but I am not sure how to proceed. Any suggestions are much appreciated.

Thanks, Erwin

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<div class="post-metadata">

**Author:** ![Erwin\_Kalvelagen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/erwin_kalvelagen/32/7773_2.png) [@Erwin\_Kalvelagen](https://discourse.julialang.org/u/Erwin_Kalvelagen)\
**Post date:** [April 3, 2019, 2:41am UTC](https://discourse.julialang.org/t/ijulia-install-error-after-installing-juno-atom-ide/22670/2 "2019-04-03T02:41:05Z")

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OK solved after `Pkg.update()`. This was not obvious to me.