# DifferentialEquations Pkg won't be added

**URL:** https://discourse.julialang.org/t/differentialequations-pkg-wont-be-added/3194
**Category:** General Usage
**Tags:** package
**Created:** [April 13, 2017, 2:47am UTC](https://discourse.julialang.org/t/differentialequations-pkg-wont-be-added/3194 "2017-04-13T02:47:56Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [April 13, 2017, 2:30pm UTC](https://discourse.julialang.org/t/differentialequations-pkg-wont-be-added/3194/9 "2017-04-13T14:30:24Z")

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Hmm, I just wiped `.julia` and install gave DifferentialEquations v1.10.1 with DiffEqBase v0.15.0. For some reason it’s giving you a really old version. Would you mind posting your `Pkg.status()` so I can investigate this a bit? During this update I think we ran into a package resolver bug in Pkg, and we’re still not quite sure why the downgrading is happening in some cases.

Note that if you have LSODA.jl installed, you will get downgraded. That’s the only case I currently know of, and it hasn’t updated yet because that’s related to this other Discourse question:

> [@Pointer being freed was not allocated](https://discourse.julialang.org/t/pointer-being-freed-was-not-allocated/3131/8):
>
> Thank you all for your answers. Hopefully, I won’t have to change the C-library. As suggested, a solution might be to do all allocations on C-side. @ihnorton Here is a copy from [these examples](https://github.com/rveltz/LSODA.jl/issues/15) which generates the malloc issue. using LSODA function rhs!(t, x, ydot, data) ydot[1]=1.0E4 \* x[2] \* x[3] - .04E0 \* x[1] ydot[3]=3.0E7 \* x[2] \* x[2] ydot[2]=-ydot[1] - ydot[3] nothing end rhs!(t, x, ydot) = rhs!(t, x, ydot, nothing) y0 = [1.,0.,0.] # case with a vector println("\n##############…

But hopefully that will get worked out soon a new version can be tagged there. For now, if you have LSODA.jl, remove it (it doesn’t come standard with DifferentialEquations, so it’s only there if you intentionally installed it)

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