ERROR: The following package names could not be resolved: error installing package in Julia

user_9943875 0
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I am trying to install julia Flux using pkg add and am getting the following error,

    julia> Pkg.add("Flux")
    ERROR: The following package names could not be resolved:
    * Flux (not found in project, manifest or registry)
    Please specify by known `name=uuid`.
   Stacktrace:
 

    [1] pkgerror(::String) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/Types.jl:120
     [2] #ensure_resolved#43(::Bool, ::Function, ::Pkg.Types.EnvCache, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/Types.jl:900
     [3] #ensure_resolved at ./none:0 [inlined]
     [4] #add_or_develop#15(::Symbol, ::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:64
     [5] #add_or_develop at ./none:0 [inlined]
     [6] #add_or_develop#14 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:34 [inlined]
     [7] #add_or_develop at ./none:0 [inlined]
     [8] #add_or_develop#11 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:33 [inlined]
     [9] #add_or_develop at ./none:0 [inlined]
     [10] #add_or_develop#10 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:32 [inlined]
     [11] #add_or_develop at ./none:0 [inlined]
     [12] #add#20 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:74 [inlined]
     [13] add(::String) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/Pkg/src/API.jl:74
     [14] top-level scope at none:0

I tried using the ] add https://github.com/FluxML/Flux.jl but got the same error could anyone help please I tries also adding other packages but similar error occurs and am thinking maybe it is an error with the julia env but am not sure so am not trying to mess with it

flux.jl julia
1 Answers

Basically, this type of error either means you have no internet connection (or are behind a firewall that is blocking connections by the package manager) or your .julia folder is corrupted.

In the second case the easiest thing to try is to delete .julia folder or set the system variable JULIA_DEPOT_PATH to point to some empty folder and restart Julia.

user_99577100
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