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I added the bin directory path of opl on system environment setting.

Following is the path.

C:\Program Files\IBM\ILOG\CPLEX_Studio1210\opl\bin\x64_win64

However, the doopl keeps giving me error like below

File "C:\Python37\lib\site-packages\doopl\opl.py", line 18, in <module>
    raise ImportError('Could not import OPL wrappers. Make sure than OPL bin directory is in the PATH')
ImportError: Could not import OPL wrappers. Make sure than OPL bin directory is in the PATH

Is there any other path I need to add?

Ho Young Jeong
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2 Answers2

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I had a similar problem. I recently updated my CPLEX version and had the same error. Once I updated doopl, it solved the problem: pip install doopl --upgrade

Joshua Woodruff
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Can you please try to upgrade doopl as mentionned by Joshua ? If you have an older version of doopl, it will not find the COS 12.10 libraries.

Viu-Long Kong
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