Error occur when I was trying to install Merlin.jl package with Pkg in Julia 1.0.
It is really confusing as it is not explicitly shown which requirement is unsatisfied.
Error message:
julia> Pkg.add(“Merlin”)
Updating registry atC:\Users\Administrator\.julia\registries\General
Updating git-repohttps://github.com/JuliaRegistries/General.git
Resolving package versions…
ERROR: Unsatisfiable requirements detected for package Merlin [80f3d04f]:
Merlin [80f3d04f] log:
├─possible versions are: 0.0.1-0.0.3 or uninstalled
├─restricted to versions * by an explicit requirement, leaving only versions 0.0.1-0.0.3
└─restricted by julia compatibility requirements to versions: uninstalled — no versions left
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\v1.0\Pkg\src\GraphType.jl:1005
[2] propagate_constraints! at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\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\v1.0\Pkg\src\GraphType.jl:1460
[4] simplify_graph! at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\GraphType.jl:1460 [inlined]
[5] macro expansion at .\logging.jl:311 [inlined]
[6] resolve_versions!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\Operations.jl:339
[7] #add_or_develop#58(::Array{Base.UUID,1}, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\Operations.jl:1163
[8] #add_or_develop at .\none:0 [inlined]
[9] #add_or_develop#13(::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\v1.0\Pkg\src\API.jl:64
[10] #add_or_develop at .\none:0 [inlined]
[11] #add_or_develop#12 at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\API.jl:29 [inlined]
[12] #add_or_develop at .\none:0 [inlined]
[13] #add_or_develop#11(::Base.Iterators.Pairs{Symbol,Symbol,Tuple{Symbol},NamedTuple{(:mode,),Tuple{Symbol}}}, ::Function, ::Array{String,1}) at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\API.jl:28
[14] #add_or_develop at .\none:0 [inlined]
[15] #add_or_develop#10 at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\API.jl:27 [inlined]
[16] #add_or_develop at .\none:0 [inlined]
[17] #add#18 at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\API.jl:69 [inlined]
[18] add(::String) at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\Pkg\src\API.jl:69
[19] top-level scope at none:0
Such confusing error occurs in Julia 1.0 more than once, how can I fix it?