Please help me, When I run Present.sage file content as a new notebook on SageMath 8.1, an error message appears with the phrase "No module named coin_backend". Can someone tell me how I could to add the module?
This is probably because your file uses the COIN-OR solver to solve a MILP program. If you want to use COIN-OR MILP solver, you have to install the cbc optional package as follows:
sage -i cbcAsked: 6 years ago
Seen: 142 times
Last updated: Aug 06 '18
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