Prolog Kernel not starting on Windows 10

[belal-sweileh]

Hi,

Following the installation and configuration instructions, when I launch Jupyter Lab (or Jupyter Notebooks) and select the Prolog kernel, the Prolog kernel can not be connected to, and I get the following error message in the terminal:

File "C:......\lib\site-packages\prolog_kernel\prolog_kernel_base_implementation.py", line 90, in start_prolog_server
raise Exception("The Prolog server could not be started with the arguments " + str(program_arguments))
Exception: The Prolog server could not be started with the arguments ['swipl', '-l', 'C:\......\lib\site-packages\prolog_kernel\prolog_server/jupyter_server.pl', '-t', 'jupyter_server_start']

I get the same errors when trying this with no config file and with a config file that uses the default values.

I have SWI-Prolog installed and added to the PATH. Please advise. Thanks.

[anbre]

Hi, have you tried running the given commands from the console?
Does the jupyter_server.pl file actually exist at that path?

[belal-sweileh]

After further inspection, it seems that the jupyter_server.pl file doesn't exist. To troubleshoot further, I created a new Python virtual environment, and upon running the command python -m pip install prolog_kernel, the only files found in the "lib\site-packages\prolog_kernel" directory were "jupyter.pl" and "test.pl".

After manually copying the rest of the files in that directory from the Github repo, the prolog kernel was able to connect without issue. Perhaps the python wheel package needs to be updated?

[anbre]

Thank you for your further analysis. I'll try to check the Python package next week.

[anbre]

You were right, there was a problem with the Python package. It should be fixed now.

Thank you again for your analysis.