CPLEX runtime not found: please install CPLEX or solve this model on DOcplexcloud

[Cagrali]

Hello,

I am new to Python-Cplex modeling. Normally, I use Java.

I was just trying to learn some about it. Let me explain what I did and tried:

• I use PyCharm (I don't know if it matters), I opened the project with Python 3.7
• I just copied and pasted your code and I got this: Traceback (most recent call last): File "C:/Users/cansu/PycharmProjects/Diet2/Diet2.py", line 109, in s = mdl.solve() docplex.mp.utils.DOcplexException: CPLEX runtime not found: please install CPLEX or solve this model on DOcplexcloud
• I tried several methods to solve. Some were saying it is because of PYTHONPATH which I don't know what it is. (I created a variable as PYTHONPATH in Control Panel > System Properties : C:\Program Files\IBM\ILOG\CPLEX_Studio1210\cplex\python\3.7\x64_win64) -I tried with different Python versions.

So far, nothing worked. I really really appreciate it if you could help me? Please remember that, I am new to Python and I don't know many things about Python-Cplex modeling including DOcplexcloud.

Regards,

[vlkong]

Hi,

There are a few things you can do to solve:

• The first thing, following the Python setup section in the CPLEX user manual, is to make sure you have a console with your python envrionment, then

  C:> cd 'C:\Program Files\IBM\ILOG\CPLEX_Studio1210\cplex\python\3.7\x64_win64'
  C:> python setup.py install

• If you prefer the environment varaible method, you can set the PYTHONPATH in control panel, but as far as I know, you need to restart PyCharm (you can check that by printing the value of sys.path)

[Cagrali]

Thank you! When I reopened PyCharm, it worked!