Fatal Error: PsiOutStream: Failed to open file

Hi,
I am trying to use Psikit, but I have encountered following issue:

Fatal Error: PsiOutStream: Failed to open file.
Error occurred in file: D:\a\1\s\psi4\src\psi4\libpsi4util\PsiOutStream.cc on line: 46

which is connected to psi4.core.be_quiet().

I have reproduced same issue in pure psi4 environment also.
I did following:

conda create -n psi4 python=3.8
conda activate psi4
conda install -c conda-forge -c psi4 psi4
python
>>>import psi4
>>>psi4.core.be_quiet()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
RuntimeError:
Fatal Error: PsiOutStream: Failed to open file.
Error occurred in file: D:\a\1\s\psi4\src\psi4\libpsi4util\PsiOutStream.cc on line: 46

Any clue how to solve this?
Cheers,
M

I think I have found the issue:
From core.cc


    core.def("be_quiet", py_be_quiet,
             "Redirects output to ``/dev/null``. "
             "To switch back to regular output mode, use :func:`~psi4.core.reopen_outfile()`. "
             "Doesn't work with Windows.");

    void py_be_quiet() {
        py_close_outfile();
        auto mode = std::ostream::app;
        outfile = std::make_shared<PsiOutStream>("/dev/null", mode);
        if (!outfile) throw PSIEXCEPTION("Psi4: Unable to redirect output to /dev/null.");
    }

from Psikit

class Psikit(object):
    def __init__(self, threads=4, memory=4, debug=False):
        import psi4
        self.psi4 = psi4
        self.psi4.set_memory("{} GB".format(memory))
        #self.psi4.set_options({"save_jk": True})  # for JK calculation
        self.psi4.set_num_threads(threads)
        self.wfn = None
        self.mol = None
        self.debug = debug
        self.tempdir = mkdtemp()
        if self.debug:
            self.psi4.core.set_output_file("psikit_out.dat", True)
        else:
            self.psi4.core.be_quiet()

Basically, Psikit author used function that is incompatible with windows machines.

Good to know, thanks for investigating.