# 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)

**URL:** <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>\
**Category:** General Usage\
**Created:** [September 4, 2019, 9:55am UTC](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 "2019-09-04T09:55:37Z")\
**Posts on this page:** 1\
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**Author:** ![fredrikekre](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fredrikekre/32/1688_2.png) [@fredrikekre](https://discourse.julialang.org/u/fredrikekre)\
**Post date:** [September 4, 2019, 10:02am UTC](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 "2019-09-04T10:02:47Z")

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Thats not the syntax you use in the Pkg REPL. This is how you do it:

```julia
pkg> add JuMP@0.19

```

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_[View the full topic](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)._