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coin-or / python-mip

Python-MIP: collection of Python tools for the modeling and solution of Mixed-Integer Linear programs
Eclipse Public License 2.0
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name 'cbclib' is not defined version 1.8.2 (same issue as #37) #103

Closed Gectrics closed 4 years ago

Gectrics commented 4 years ago

Hello,

I am having the same issue with the cbc library as issue #37 on an 10.13.6 MacBook (HIGH SIERRA) with MIP versions from 1.5.3 to 1.8.2 . Additionally, I also facing unstable behaviour with MIP versions from 1.5.0 to 1.5.2 (solution does not respect the constraints).

Details of the error:

issue_mip_cbc

Thank you for your help.

Kind regards

Hugo

tuliotoffolo commented 4 years ago

Hello Hugo,

Indeed many people are having trouble to use Python-MIP on MacOS. Tomorrow I’ll execute a set of experiments together with a contributor from Chile to sort this out. Hopefully, a solution will be committed very soon. Em 20 de mai de 2020 15:11 -0300, Gectrics notifications@github.com, escreveu:

Hello, I am having the same issue with the cbc library as issue #37 on an 10.13.6 MacBook (HIGH SIERRA) with MIP versions from 1.5.3 to 1.8.2 . Additionally, I also facing unstable behaviour with MIP versions from 1.5.0 to 1.5.2 (solution does not respect the constraints). Details of the error: Thank you for your help. Kind regards Hugo — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

tuliotoffolo commented 4 years ago

Hello again, Hugo! Would you please try version 1.9? @pabloazurduy helped me lot of this afternoon and it seems that the problem is solved now.

Gectrics commented 4 years ago

Hello Túlio,

It now works with MIP 1.9.0. Thank you

Kind regards

Hugo

tuliotoffolo commented 4 years ago

Excellent! 👍