DOCPLEX不工作-找不到CPLEX运行时

Question

当我安装了docplex模块并使用python3.7/3.8时，我遇到了类似下面的错误。你能帮帮我吗？

Traceback (most recent call last):
  File "C:/Users/xxx/PycharmProjects/pythonProject/EPC _LTC.py", line 155, in <module>
    solution = mdl.solve(log_output=True)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\model.py", line 4222, in solve
    return self.fatal("CPLEX runtime not found: please install CPLEX or solve this model on DOcplexcloud")
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\model.py", line 894, in fatal
    self._error_handler.fatal(msg, args)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\error_handler.py", line 210, in fatal
    raise DOcplexException(resolved_message)
docplex.mp.utils.DOcplexException: CPLEX runtime not found: please install CPLEX or solve this model on DOcplexcloud

Answer 1

docplex只是建模层-您需要单独安装CPLEX。如果可以使用社区版，那么只需在python环境中使用pip install cplex即可。如果您使用的是商业版，则需要按照此处的说明安装CPLEX python api：https://www.ibm.com/docs/en/icos/20.1.0?topic=cplex-setting-up-python-api