# Latest versions of Clp, Cbc, SCIP

**URL:** <https://discourse.julialang.org/t/latest-versions-of-clp-cbc-scip/40324>\
**Category:** General Usage\
**Tags:** package\
**Created:** [May 28, 2020, 8:28am UTC](https://discourse.julialang.org/t/latest-versions-of-clp-cbc-scip/40324 "2020-05-28T08:28:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![greg\_plowman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/greg_plowman/32/8100_2.png) [@greg\_plowman](https://discourse.julialang.org/u/greg_plowman)\
**Post date:** [May 28, 2020, 8:28am UTC](https://discourse.julialang.org/t/latest-versions-of-clp-cbc-scip/40324/1 "2020-05-28T08:28:02Z")

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For me, the latest versions of `Clp`, `Cbc` and `SCIP` don’t seem to want to co-exist.

I think the `CEnum` entries in the `[compat]` section of the `Project.toml` files are incompatible:

```julia
Clp: CEnum = "0.3"
Cbc: CEnum = "0.3, 0.4"
SCIP: CEnum = "^0.1.0"

```

Can anyone else reproduce this, or is it just my setup?

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**Author:** ![leethargo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/leethargo/32/6004_2.png) [@leethargo](https://discourse.julialang.org/u/leethargo)\
**Post date:** [May 28, 2020, 3:38pm UTC](https://discourse.julialang.org/t/latest-versions-of-clp-cbc-scip/40324/2 "2020-05-28T15:38:49Z")

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This is a known issue with SCIP.jl.  
Unfortunately, SCIP.jl doesn’t work with updated CEnum.jl without also changing the Clang.jl-generated wrappers. The latter was not fully automatic, so this is nontrivial work. See also [#77](https://github.com/SCIP-Interfaces/SCIP.jl/issues/77)

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<div class="post-metadata">

**Author:** ![greg\_plowman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/greg_plowman/32/8100_2.png) [@greg\_plowman](https://discourse.julialang.org/u/greg_plowman)\
**Post date:** [May 28, 2020, 5:11pm UTC](https://discourse.julialang.org/t/latest-versions-of-clp-cbc-scip/40324/3 "2020-05-28T17:11:13Z")

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Oh I see. Thanks.