# Package "LinearAlgebra"

**URL:** <https://discourse.julialang.org/t/package-linearalgebra/16064>\
**Category:** General Usage\
**Tags:** question\
**Created:** [October 9, 2018, 10:47am UTC](https://discourse.julialang.org/t/package-linearalgebra/16064 "2018-10-09T10:47:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [October 9, 2018, 10:47am UTC](https://discourse.julialang.org/t/package-linearalgebra/16064/1 "2018-10-09T10:47:11Z")

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Since I have to use debugger, I’m going back to JuliaPro with Julia-v0.6.4.1. While testing a package, I was bounced and told that I need package “LinearAlgebra”. But failed installing it. Is that because the package no long exists? Any workaround? Thanks!

```julia
julia> Pkg.add("LinearAlgebra")
ERROR: unknown package LinearAlgebra
macro expansion at .\pkg\entry.jl:53 [inlined]
(::Base.Pkg.Entry.##1#3{String,Base.Pkg.Types.VersionSet})() at .\task.jl:335

```

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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:** [October 9, 2018, 10:49am UTC](https://discourse.julialang.org/t/package-linearalgebra/16064/2 "2018-10-09T10:49:49Z")

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`LinearAlgebra` is a standard library introduced in Julia v0.7 containing `Base.LinAlg` from Julia v0.6, so it is not available on Julia v0.6 A package that requires it will not work on Julia 0.6 either.

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<div class="post-metadata">

**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [October 9, 2018, 10:52am UTC](https://discourse.julialang.org/t/package-linearalgebra/16064/3 "2018-10-09T10:52:13Z")

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Oh, I see. Thanks!

Really want to say: **I’d be very happy to elope with anyone who can give me a proper and robust debugger which works for v1.0!**

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**Author:** ![DNF](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dnf/32/10191_2.png) [@DNF](https://discourse.julialang.org/u/DNF)\
**Post date:** [October 9, 2018, 12:30pm UTC](https://discourse.julialang.org/t/package-linearalgebra/16064/5 "2018-10-09T12:30:04Z")

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You can try Rebugger.jl, which is apparently very cool, though I haven’t tried it properly myself.

Here: [GitHub - timholy/Rebugger.jl: An expression-level debugger for Julia with a provocative command-line (REPL) user interface](https://github.com/timholy/Rebugger.jl)

(The name seems to indicate that you can use to re-introduce old bugs, but I don’t think that’s the case!)

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<div class="post-metadata">

**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [October 9, 2018, 12:33pm UTC](https://discourse.julialang.org/t/package-linearalgebra/16064/6 "2018-10-09T12:33:01Z")

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> [@DNF](#):
>
> You can try Rebugger.jl, which is apparently very cool, though I haven’t tried it properly myself.
> 
> Here: [GitHub - timholy/Rebugger.jl: An expression-level debugger for Julia with a provocative command-line (REPL) user interface](https://github.com/timholy/Rebugger.jl)

In fact, I have tried. `Rebugger` is really really nice and I really really want to say ‘thank you’ to the author. But it is just too buggy to handle some of the big packages that I’m working with. So I had to give up.