# Clp in Julia version 1.2.0

**URL:** <https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333>\
**Category:** General Usage\
**Tags:** jump\
**Created:** [September 3, 2019, 3:51pm UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333 "2019-09-03T15:51:29Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jayce\_ram](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jayce_ram/32/3977_2.png) [@jayce\_ram](https://discourse.julialang.org/u/jayce_ram)\
**Post date:** [September 3, 2019, 3:51pm UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333/1 "2019-09-03T15:51:30Z")

</div>

I got the following error when I have tried to install Clp in the environment Julia in Atom:

```julia
(v1.2) pkg> add Clp
  Updating registry at `C:\Users\joyce.ramos-araujo\.julia\registries\General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
 Resolving package versions...
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 MathOptInterface [b8f27783] to versions: uninstalled
 │ └─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
 └─restricted by compatibility requirements with Clp [e2554f3b] to versions: [0.4.0-0.4.3, 0.6.0] — no versions left
   └─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]

```

Anyone knows what it could be?  
Thanks in advance.

---

<div class="post-metadata">

**Author:** ![boxio](https://avatars.discourse-cdn.com/v4/letter/b/8edcca/32.png) [@boxio](https://discourse.julialang.org/u/boxio)\
**Post date:** [September 3, 2019, 4:24pm UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333/2 "2019-09-03T16:24:49Z")

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I believe that Clp is having some compability issues with Julia 1.2.0 or JuMP 0.20. With the latest Julia and JuMP version, I have the exact same issue.

---

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**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [September 3, 2019, 4:45pm UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333/3 "2019-09-03T16:45:21Z")

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Clp has not been updated to the latest JuMP version. Use JuMP 0.19.

---

<div class="post-metadata">

**Author:** ![midejesus](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/midejesus/32/10093_2.png) [@midejesus](https://discourse.julialang.org/u/midejesus)\
**Post date:** [September 3, 2019, 5:48pm UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333/4 "2019-09-03T17:48:15Z")

</div>

I used Pkg.add(PackageSpec(name = “JuMP”, version = “0.19.0”))

---

<div class="post-metadata">

**Author:** ![jayce\_ram](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jayce_ram/32/3977_2.png) [@jayce\_ram](https://discourse.julialang.org/u/jayce_ram)\
**Post date:** [September 4, 2019, 7:17am UTC](https://discourse.julialang.org/t/clp-in-julia-version-1-2-0/28333/5 "2019-09-04T07:17:07Z")

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I have tried to install JuMP 0.19 as suggested, but I got the following error:

```julia
(v1.2) pkg> add “JuMP”, version = “0.19.0”
  Updating registry at `C:\Users\jra\.julia\registries\General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
    Fetching: [=====>] 10.5 % Fetching: [=====>] 11.0 % Fetching: [=====>] 11.5 % Fetching: [=====>] 12.0 % Fetching: [======>] 12.6 % Fetching: [======>] 13.1 % Fetching: [======>] 13.6 % Fetching: [======>] 14.1 % Fetching: [======>] 14.7 % Fetching: [=======>] 15.2 % Fetching: [=======>] 15.7 % Fetching: [=======>] 16.2 % Fetching: [=======>] 16.8 % Fetching: [=======>] 17.3 % Fetching: [========>] 17.8 % Fetching: [========>] 18.3 % Fetching: [========>] 18.8 % Fetching: [========>] 19.4 % Fetching: [========>] 19.9 % Fetching: [=========>] 20.4 % Fetching: [=========>] 20.9 % Fetching: [=========>] 21.5 % Fetching: [=========>] 22.0 % Fetching: [==========>] 22.5 % Fetching: [==========>] 23.0 % Fetching: [==========>] 23.6 % Fetching: [==========>] 24.1 % Fetching: [==========>] 24.6 % Fetching: [===========>] 25.1 % Fetching: [===========>] 25.7 % Fetching: [===========>] 26.2 % Fetching: [===========>] 26.7 % Fetching: [===========>] 27.2 % Fetching: [============>] 27.7 % Fetching: [============>] 28.3 % Fetching: [============>] 28.8 % Fetching: [============>] 29.3 % Fetching: [============>] 29.8 % Fetching: [=============>] 30.4 % Fetching: [=============>] 30.9 % Fetching: [=============>] 31.4 % Fetching: [=============>] 31.9 % Fetching: [=============>] 32.5 % Fetching: [==============>] 33.0 % Fetching: [==============>] 33.5 % Fetching: [==============>] 34.0 % Fetching: [==============>] 34.6 % Fetching: [===============>] 35.1 % Fetching: [===============>] 35.6 % Fetching: [===============>] 36.1 % Fetching: [===============>] 36.6 % Fetching: [===============>] 37.2 % Fetching: [================>] 37.7 % Fetching: [================>] 38.2 % Fetching: [================>] 38.7 % Fetching: [================>] 39.3 % Fetching: [================>] 39.8 % Fetching: [=================>] 40.3 % Fetching: [=================>] 40.8 % Fetching: [=================>] 41.4 % Fetching: [=================>] 41.9 % Fetching: [=================>] 42.4 % Fetching: [==================>] 42.9 % Fetching: [==================>] 43.5 % Fetching: [==================>] 44.0 % Fetching: [==================>] 44.5 % Fetching: [===================>] 45.0 % Fetching: [===================>] 45.5 % Fetching: [===================>] 46.1 % Fetching: [===================>] 46.6 % Fetching: [===================>] 47.1 % Fetching: [====================>] 47.6 % Fetching: [====================>] 48.2 % Fetching: [====================>] 48.7 % Fetching: [====================>] 49.2 % Fetching: [====================>] 49.7 % Fetching: [=====================>] 50.3 % Fetching: [=====================>] 50.8 % Fetching: [=====================>] 51.3 % Fetching: [=====================>] 51.8 % Fetching: [=====================>] 52.4 % Fetching: [======================>] 52.9 % Fetching: [======================>] 53.4 % Fetching: [======================>] 53.9 % Fetching: [======================>] 54.5 % Fetching: [======================>] 55.0 % Fetching: [=======================>] 55.5 % Fetching: [=======================>] 56.0 % Fetching: [=======================>] 56.5 % Fetching: [=======================>] 57.1 % Fetching: [========================>] 57.6 % Fetching: [========================>] 58.1 % Fetching: [========================>] 58.6 % Fetching: [========================>] 59.2 % Fetching: [========================>] 59.7 % Fetching: [=========================>] 60.2 % Fetching: [=========================>] 60.7 % Fetching: [=========================>] 61.3 % Fetching: [=========================>] 61.8 % Fetching: [=========================>] 62.3 % Fetching: [==========================>] 62.8 % Fetching: [==========================>] 63.4 % Fetching: [==========================>] 63.9 % Fetching: [==========================>] 64.4 % Fetching: [==========================>] 64.9 % Fetching: [===========================>] 65.4 % Fetching: [===========================>] 66.0 % Fetching: [===========================>] 66.5 % Fetching: [===========================>] 67.0 % Fetching: [============================>] 67.5 % Fetching: [============================>] 68.1 % Fetching: [============================>] 68.6 % Fetching: [============================>] 69.1 % Fetching: [============================>] 69.6 % Fetching: [=============================>] 70.2 % Fetching: [=============================>] 70.7 % Fetching: [=============================>] 71.2 % Fetching: [=============================>] 71.7 % Fetching: [=============================>] 72.3 % Fetching: [==============================>] 72.8 % Fetching: [==============================>] 73.3 % Fetching: [==============================>] 73.8 % Fetching: [==============================>] 74.3 % Fetching: [==============================>] 74.9 % Fetching: [===============================>] 75.4 % Fetching: [===============================>] 75.9 % Fetching: [===============================>] 76.4 % Fetching: [===============================>] 77.0 % Fetching: [===============================>] 77.5 % Fetching: [================================>] 78.0 % Fetching: [================================>] 78.5 % Fetching: [================================>] 79.1 % Fetching: [================================>] 79.6 % Fetching: [=================================>] 80.1 % Fetching: [=================================>] 80.6 % Fetching: [=================================>] 81.2 % Fetching: [=================================>] 81.7 % Fetching: [=================================>] 82.2 % Fetching: [==================================>] 82.7 % Fetching: [==================================>] 83.2 % Fetching: [==================================>] 83.8 % Fetching: [==================================>] 84.3 % Fetching: [==================================>] 84.8 % Fetching: [===================================>] 85.3 % Fetching: [===================================>] 85.9 % Fetching: [===================================>] 86.4 % Fetching: [===================================>] 86.9 % Fetching: [===================================>] 87.4 % Fetching: [====================================>] 88.0 % Fetching: [====================================>] 88.5 % Fetching: [====================================>] 89.0 % Fetching: [====================================>] 89.5 % Fetching: [=====================================>] 90.1 % Fetching: [=====================================>] 90.6 % Fetching: [=====================================>] 91.1 % Fetching: [=====================================>] 91.6 % Fetching: [=====================================>] 92.1 % Fetching: [======================================>] 92.7 % Fetching: [======================================>] 93.2 % Fetching: [======================================>] 93.7 % Fetching: [======================================>] 94.2 % Fetching: [======================================>] 94.8 % Fetching: [=======================================>] 95.3 % Fetching: [=======================================>] 95.8 % Fetching: [=======================================>] 96.3 % Fetching: [=======================================>] 96.9 % Fetching: [=======================================>] 97.4 % Fetching: [========================================>] 97.9 % Fetching: [========================================>] 98.4 % Fetching: [========================================>] 99.0 % Fetching: [========================================>] 99.5 % Fetching: [========================================>] 100.0
   Cloning git-repo `“JuMP”,`
ERROR: failed to clone from “JuMP”,, error: GitError(Code:ERROR,
Class:Net, unsupported URL protocol)

```

Anyone got the same problem or have an idea about this?  
#UPDATE: the solution for this problem it is in this discussion :

> [@Problem to install JuMP 0.9 in Julia 1.2.0 : ERROR: failed to clone from “JuMP”,, error: GitError(Code:ERROR, Class:Net, unsupported URL protocol)](https://discourse.julialang.org/t/problem-to-install-jump-0-9-in-julia-1-2-0-error-failed-to-clone-from-jump-error-giterror-code-error-class-net-unsupported-url-protocol/28365/2):
>
> Thats not the syntax you use in the Pkg REPL. This is how you do it: pkg\> add JuMP@0.19