Couldn't finish the tutorial about mgefinder HOT 2 CLOSED

$ mgefinder workflow toydir/
#### PARAMETERS ###
command: workflow
workdir: toydir/
snakefile: /home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/mgefinder/workflow/Snakefile
configfile: /home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/mgefinder/workflow/config.yml
cores: 1
memory: 16000
unlock: False
rerun_incomplete: False
keep_going: False
###################
Traceback (most recent call last):
  File "/home/dfi_user/miniconda3/envs/mgefinder/bin/mgefinder", line 11, in <module>
    sys.exit(cli())
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/mgefinder/main.py", line 46, in workflow
    _workflow(workdir, snakefile, configfile, cores, memory, unlock, rerun_incomplete, keep_going)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/mgefinder/workflow.py", line 6, in _workflow
    force_incomplete=rerun_incomplete, keepgoing=keep_going)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/snakemake/__init__.py", line 394, in snakemake
    overwrite_config.update(load_configfile(f))
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/snakemake/io.py", line 1311, in load_configfile
    config = _load_configfile(configpath)
  File "/home/dfi_user/miniconda3/envs/mgefinder/lib/python3.7/site-packages/snakemake/io.py", line 1273, in _load_configfile
    with open(configpath) as f:
IsADirectoryError: [Errno 21] Is a directory: '/'