# Adding JuMP downgrades some packages in v0.6

**URL:** <https://discourse.julialang.org/t/adding-jump-downgrades-some-packages-in-v0-6/4420>\
**Category:** General Usage\
**Tags:** package\
**Created:** [June 22, 2017, 11:40pm UTC](https://discourse.julialang.org/t/adding-jump-downgrades-some-packages-in-v0-6/4420 "2017-06-22T23:40:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![leejm516](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/leejm516/32/8219_2.png) [@leejm516](https://discourse.julialang.org/u/leejm516)\
**Post date:** [June 22, 2017, 11:40pm UTC](https://discourse.julialang.org/t/adding-jump-downgrades-some-packages-in-v0-6/4420/1 "2017-06-22T23:40:51Z")

</div>

```julia
julia> Pkg.add("JuMP")
INFO: Downgrading DiffEqCallbacks: v0.2.0 => v0.1.1
INFO: Downgrading ForwardDiff: v0.5.0 => v0.4.2
INFO: Installing JuMP v0.17.1
INFO: Downgrading LineSearches: v2.2.0 => v0.1.5
INFO: Downgrading NLsolve: v0.10.1 => v0.9.1
INFO: Downgrading Optim: v0.9.2 => v0.7.8
INFO: Downgrading OrdinaryDiffEq: v2.8.0 => v2.4.0
INFO: Installing ReverseDiffSparse v0.7.3
INFO: Downgrading StochasticDiffEq: v2.6.0 => v2.2.1
INFO: Removing CommonSubexpressions v0.0.1
INFO: Removing RealInterface v0.0.2
INFO: Package database updated

```

I checked REQUIRE files of JuMP and ReverseDiffSparse. Both of them contain  
`ForwardDiff 0.3 0.5`  
but actually FowardDiff was downgraded from 0.5.0 to 0.4.2.

```julia
julia> versioninfo()
Julia Version 0.6.0
Commit 9036443 (2017-06-19 13:05 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.9.1 (ORCJIT, haswell)

julia> Pkg.status()
9 required packages:
 - DifferentialEquations 2.2.1
 - GLM 0.7.0
 - Gurobi 0.3.2
 - JuMP 0.17.1
 - MathProgBase 0.6.4
 - Plots 0.12.0
 - PyPlot 2.3.2
 - StatsModels 0.0.2
 - TensorFlow 0.6.4+ master
102 additional packages:
 - AlgebraicDiffEq 0.1.0
 - AutoHashEquals 0.1.1
 - BinDeps 0.6.0
 - Blosc 0.2.1
 - Calculus 0.2.2
 - CategoricalArrays 0.1.6
 - ChunkedArrays 0.1.1
 - ColorTypes 0.5.1
 - Colors 0.7.3
 - Combinatorics 0.4.0
 - Compat 0.26.0
 - Conda 0.5.3
 - DataArrays 0.5.3
 - DataFrames 0.10.0
 - DataStreams 0.1.3
 - DataStructures 0.5.3
 - DataTables 0.0.3
 - DelayDiffEq 0.4.0
 - DiffBase 0.2.0
 - DiffEqBase 1.12.0
 - DiffEqBiological 0.2.0
 - DiffEqCallbacks 0.1.1
 - DiffEqDevTools 0.9.0
 - DiffEqFinancial 0.2.0
 - DiffEqJump 0.4.0
 - DiffEqMonteCarlo 0.7.0
 - DiffEqNoiseProcess 0.2.0
 - DiffEqPDEBase 0.3.2
 - DiffEqParamEstim 0.5.0
 - DiffEqSensitivity 0.2.2
 - DiffEqUncertainty 0.0.1
 - DimensionalPlotRecipes 0.0.2
 - Distances 0.4.1
 - Distributions 0.13.0
 - EllipsisNotation 0.2.2
 - FileIO 0.4.1
 - FiniteElementDiffEq 0.4.0
 - FixedPointNumbers 0.3.8
 - FixedSizeArrays 0.2.5
 - ForwardDiff 0.4.2
 - GZip 0.3.0
 - GenericSVD 0.0.2
 - HDF5 0.8.1
 - Hiccup 0.1.1
 - IterativeSolvers 0.3.1
 - Iterators 0.3.1
 - JLD 0.6.11
 - JSON 0.12.0
 - Juno 0.3.0
 - LaTeXStrings 0.2.1
 - LearnBase 0.1.5
 - LegacyStrings 0.2.2
 - LineSearches 0.1.5
 - LinearMaps 0.3.0
 - LossFunctions 0.1.0
 - LsqFit 0.3.0
 - MNIST 0.0.2
 - MacroTools 0.3.7
 - Measures 0.1.0
 - Media 0.3.0
 - MultiScaleArrays 0.3.0
 - NLSolversBase 2.1.3
 - NLsolve 0.9.1
 - NaNMath 0.2.5
 - NullableArrays 0.1.1
 - Optim 0.7.8
 - OptimBase 0.1.0
 - OrdinaryDiffEq 2.4.0
 - PDMats 0.7.0
 - ParameterizedFunctions 2.1.0
 - Parameters 0.7.2
 - PlotThemes 0.1.4
 - PlotUtils 0.4.2
 - Polynomials 0.1.5
 - PositiveFactorizations 0.0.4
 - ProtoBuf 0.4.0
 - PyCall 1.13.0
 - QuadGK 0.1.2
 - RecipesBase 0.2.0
 - RecursiveArrayTools 0.10.0
 - Reexport 0.0.3
 - ResettableStacks 0.1.0
 - ReverseDiffSparse 0.7.3
 - Rmath 0.1.7
 - Roots 0.4.0
 - SHA 0.3.3
 - Showoff 0.1.1
 - SimpleTraits 0.5.0
 - SortingAlgorithms 0.1.1
 - SpecialFunctions 0.1.1
 - StaticArrays 0.5.1
 - StatsBase 0.16.0
 - StatsFuns 0.5.0
 - SteadyStateDiffEq 0.1.0
 - StochasticDiffEq 2.2.1
 - SugarBLAS 0.0.3
 - Sundials 0.12.0
 - SymEngine 0.2.0
 - URIParser 0.1.8
 - UnicodePlots 0.2.4
 - VectorizedRoutines 0.0.2
 - WeakRefStrings 0.2.0

```

Maybe the previous Pkg issues have not completely solved.

> [@DifferentialEquations Pkg won't be added](https://discourse.julialang.org/t/differentialequations-pkg-wont-be-added/3194):
>
> julia\> versioninfo() Julia Version 0.5.1 Commit 6445c82 (2017-03-05 13:25 UTC) Platform Info: OS: Linux (x86\_64-pc-linux-gnu) CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz WORD\_SIZE: 64 BLAS: libopenblas (USE64BITINT DYNAMIC\_ARCH NO\_AFFINITY Haswell) LAPACK: libopenblas64\_ LIBM: libopenlibm LLVM: libLLVM-3.7.1 (ORCJIT, haswell) I was struggling in a combat between Bio and DifferentialEquations, which were trying to downgrade each other. Finally, I decided to initialize the Pkg i…

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<div class="post-metadata">

**Author:** ![rdeits](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rdeits/32/286_2.png) [@rdeits](https://discourse.julialang.org/u/rdeits)\
**Post date:** [June 23, 2017, 6:04am UTC](https://discourse.julialang.org/t/adding-jump-downgrades-some-packages-in-v0-6/4420/2 "2017-06-23T06:04:07Z")

</div>

The requirement syntax `ForwardDiff 0.3 0.5` requires a version V which is

```julia
0.3 <= V < 0.5

```

(which does not include the 0.5 endpoint). So ForwardDiff 0.5 does not satisfy that requirement, and ForwardDiff had to be downgraded to 0.4.2.