Error: Unsatisfiable requirements detected for package LinQuadOptInterface [f8899e07] help

[N_Mal]

Hi, I’m new to Julia and I need some help.
I’m using Julia to solve this problem (not the full problem, the forum doesn’t let me because it exceed the number of users?):

import Pkg
Pkg.add("JuMP")
Pkg.add("CSV")
Pkg.add("Clp")
Pkg.add("GLPK")
Pkg.add("DataFrames")
Pkg.add("LinearAlgebra")

using JuMP, CSV, Clp, GLPK, DataFrames, LinearAlgebra

m = Model(with_optimizer(Clp.Optimizer))
#Variables: xij= cantidad de carros para bebés producidas por las plantas i= 1, 2, 3 que serán distribuidos mensualmente 
# a los centros de distribucióna j= 1, 2, 3, 4
@variables(m, begin #Definimos las variables
        x11>=0 
        x12>=0             
        x13>=0            
        x14>=0 
        x21>=0             
        x22>=0             
        x23>=0            
        x24>=0 
        x31>=0             
        x32>=0             
        x33>=0            
        x34>=0 
         
end)  
# restricciones de Oferta
@constraint(m, x11+x12+x13+x14==12)        
@constraint(m, x21+x22+x23+x24==17)           
@constraint(m, x31+x32+x33+x34==11) 
 
# restricciones de Demanda
@constraint(m, x11+x21+x31== 10)
@constraint(m, x12+x22+x32== 10)
@constraint(m, x13+x23+x33== 10)
@constraint(m, x14+x24+x34== 10)

@objective(m, Min, 500*x11+750*x12+300*x13+700*x14+650*x21+800*x22+400*x23+600*x24+400*x31+700*x32+500*x33+550*x34)
print(m)
JuMP.optimize!(m)

obj_value=JuMP.objective_value(m)
x11=JuMP.value(x11)
x12=JuMP.value(x12)
x13=JuMP.value(x13)
x14=JuMP.value(x14)
x21=JuMP.value(x21)
x22=JuMP.value(x22)
x23=JuMP.value(x23)
x24=JuMP.value(x24)
x31=JuMP.value(x31)
x32=JuMP.value(x32)
x33=JuMP.value(x33)
x34=JuMP.value(x34)

println("Valor func objetivo_min=", obj_value)
println("x11 =", x11)
println("x12    =", x12)
println("x13    =", x13)
println("x14    =", x14)

println("x21 =", x21)
println("x22    =", x22)
println("x23    =", x23)
println("x24    =", x24)

println("x31 =", x31)
println("x32    =", x32)
println("x33    =", x33)
println("x34    =", x34)

And I got this error:

Unsatisfiable requirements detected for package LinQuadOptInterface [f8899e07]:
 LinQuadOptInterface [f8899e07] log:
 ├─possible versions are: [0.1.0, 0.2.0, 0.3.0-0.3.1, 0.4.0-0.4.3, 0.5.0, 0.6.0] or uninstalled
 ├─restricted by julia compatibility requirements to versions: [0.3.0-0.3.1, 0.4.0-0.4.3, 0.5.0, 0.6.0] or uninstalled
 ├─restricted by compatibility requirements with Clp [e2554f3b] to versions: [0.4.0-0.4.3, 0.6.0]
 │ └─Clp [e2554f3b] log:
 │   ├─possible versions are: [0.0.5-0.0.10, 0.1.0-0.1.1, 0.2.0-0.2.2, 0.3.0-0.3.1, 0.4.0, 0.5.0-0.5.1, 0.6.0-0.6.2] or uninstalled
 │   ├─restricted to versions * by an explicit requirement, leaving only versions [0.0.5-0.0.10, 0.1.0-0.1.1, 0.2.0-0.2.2, 0.3.0-0.3.1, 0.4.0, 0.5.0-0.5.1, 0.6.0-0.6.2]
 │   └─restricted by julia compatibility requirements to versions: [0.5.0-0.5.1, 0.6.0-0.6.2] or uninstalled, leaving only versions: [0.5.0-0.5.1, 0.6.0-0.6.2]
 └─restricted by compatibility requirements with MathOptInterface [b8f27783] to versions: uninstalled — no versions left
   └─MathOptInterface [b8f27783] log:
     ├─possible versions are: [0.1.0, 0.2.0, 0.3.0, 0.4.0-0.4.1, 0.5.0-0.5.1, 0.6.0-0.6.4, 0.7.0, 0.8.0-0.8.4, 0.9.0-0.9.1] or uninstalled
     ├─restricted by julia compatibility requirements to versions: [0.5.0-0.5.1, 0.6.0-0.6.4, 0.7.0, 0.8.0-0.8.4, 0.9.0-0.9.1] or uninstalled
     └─restricted by compatibility requirements with JuMP [4076af6c] to versions: 0.9.1
       └─JuMP [4076af6c] log:
         ├─possible versions are: [0.1.1-0.1.2, 0.2.0, 0.3.0-0.3.2, 0.4.0-0.4.1, 0.5.0-0.5.8, 0.6.0-0.6.3, 0.7.0-0.7.4, 0.8.0, 0.9.0-0.9.3, 0.10.0-0.10.3, 0.11.0-0.11.3, 0.12.0-0.12.2, 0.13.0-0.13.2, 0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0-0.16.2, 0.17.0-0.17.1, 0.18.0-0.18.6, 0.19.0-0.19.2, 0.20.0] or uninstalled
         └─restricted to versions 0.20.0 by an explicit requirement, leaving only versions 0.20.0

Stacktrace:
 [1] #propagate_constraints!#61(::Bool, ::Function, ::Pkg.GraphType.Graph, ::Set{Int64}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/GraphType.jl:1005
 [2] propagate_constraints! at /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/GraphType.jl:1460
 [4] simplify_graph! at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/GraphType.jl:1460 [inlined] (repeats 2 times)
 [5] resolve_versions!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Nothing) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/Operations.jl:371
 [6] resolve_versions! at /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/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 /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:28
 [16] #add_or_develop at ./none:0 [inlined]
 [17] #add#20 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:59 [inlined]
 [18] add(::String) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:59
 [19] top-level scope at In[1]:4

It is a problem with the package version? I tried using the try jupyter with julia from the jupyter page and installed both julia and anaconda using this guide How to Add Julia to Jupyter Notebook - Data to Fish, but both didn’t work.
To be honest I have no idea what exactly I have to do, if somebody can help me. Thanks

[stevengj]

@N_Mal

(not the full problem, the forum doesn’t let me because it exceed the number of users?)

@N_Mal, you need to quote your code with backticks (I edited your post to do this):

PSA: how to quote code with backticks

This is a short post on using backticks (` and ```) to quote code, with the intention of benefiting users who are confused by this feature of the site. The intention is to make it linkable when necessary. Why By quoting your code, you get a monospaced font (which preserves indentation) and syntax highlighting. This helps people who read your code and want to help you. Displayed code looks like this: function displayed_code(x::Int, y::Int) if x < y println("x is smaller") else …

When you type an expression like @variables without quoting it, you are actually “pinging” a user named variables, just like where I mentioned your username above. The forum software prevents you from pinging too many users in a single post. If you quote the code, however, it knows that @ is part of the code rather than a username reference.

[00vareladavid]

See this post: How to activate a package in a script? - #2 by 00vareladavid.

You can find the Pkg documentation here: 2. Getting Started · Pkg.jl.

[N_Mal]

It worked, thanks!