Support for Installing IPOPT: Solver

[SWATHI KRISHNA]

Dear all,

I am a beginner for PYOMO,  I tried to solve a nonlinear optimization problem using Pyomo, but it requires an ipopt solver. Does anybody here know how to install the IPOPT solver for python/Pycharm. Error got when try to install it is given below. Please help me to fix it.

Collecting ipopt
  Using cached ipopt-1.0.3.tar.gz (42 kB)
  Preparing metadata (setup.py) ... error

  Using cached ipopt-0.3.0.tar.gz (56 kB)
  Preparing metadata (setup.py) ... error

 Using cached ipopt-0.2.0.tar.gz (162 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: numpy in f:\pydss\lib\site-packages (from ipopt) (1.21.6)
Requirement already satisfied: cython in f:\pydss\lib\site-packages (from ipopt) (0.29.32)
Requirement already satisfied: six in f:\pydss\lib\site-packages (from ipopt) (1.16.0)
Requirement already satisfied: future in f:\pydss\lib\site-packages (from ipopt) (0.18.2)
Requirement already satisfied: setuptools in f:\pydss\lib\site-packages (from ipopt) (60.2.0)
Building wheels for collected packages: ipopt
  Building wheel for ipopt (setup.py) ... error
  ERROR: Command errored out with exit status 1:

 ERROR: Failed building wheel for ipopt
  Running setup.py clean for ipopt
Failed to build ipopt
Installing collected packages: ipopt
    Running setup.py install for ipopt ... error
    ERROR: Command errored out with exit status 1:

Thanking you

Swathi Krishna

[Jeffrey Kantor]

Hi …

If you’re using the Anaconda distribution of Python, you should have condo available to you via a terminal window. If so, give this a try …

conda install -c conda-forge ipopt

Alternatively, the Python script shown on https://jckantor.github.io/ND-Pyomo-Cookbook/notebooks/01.04-Cross-Platform-Installation-of-Pyomo-and-Solvers.html is an attempt at a cross-platform installation of Pyomo plus the ipopt and abc solvers.

Jeff

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