FileNotFoundError: [WinError 2] The system cannot find the file specified

[yasirroni]

Running py setup.py install returned with:

  File "setup.py", line 98, in pkgconfig
    output = sp.Popen(["pkg-config", "--libs", "--cflags"] + list(packages),
  File "C:\Users\muham\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 858, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\muham\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1311, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

Testing pkg-config:

pkg-config

Must specify at least one library at C:\Strawberry\perl\bin/pkg-config line 1237.

Do you what happen here? I can't use conda and need a windows solution. Thanks.

[moorepants]

We have some Windows installation instructions here https://cyipopt.readthedocs.io/en/stable/install.html#from-source-on-windows

[yasirroni]

I've following the tutorial. But, I'm not sure if I got Visual C++ or not. As far as I remember, I've been already successfully install cvxpy from source, thus it should be already installed.

The code structure also already following below instruction:

After Ipopt is extracted, the bin, lib and include folders should be in the root cyipopt directory, i.e. adjacent to the setup.py

[moorepants]

You'll have to show us here exactly what you are doing for us to help. Please provide the exact steps you perform so we can see what might be happening.

[yasirroni]

1. Clone this repository
2. Download Ipopt-3.13.3-win64-msvs2019-md.zip
3. Extract Ipopt-3.13.3-win64-msvs2019-md.zip
4. Copy all folder inside Ipopt-3.13.3-win64-msvs2019-md to this repository
5. py setup.py install

I think this is due to old pkg-config version?

[moorepants]

You aren't setting the environment variable to point to the directory you extract. pkg-config is not used on windows (if you properly set the env var).

[moorepants]

There was a regression that would cause the files adjacent to the setup.py to not be found. It has been fixed in #220. Please reopen if this doesn't fix the issue for you.