Error while using sigmac

[dmange3190]

I tried installing it but got an error while converting the rule using sigmac using this command python3 sigmac.py -t splunk -c tools/config/generic/sysmon.yml ./rules/windows/process_creation/win_susp_whoami.yml

Error : Failed to open Sigma configuration file tools/config/generic/sysmon.yml: [Errno 2] No such file or directory: 'tools/config/generic/sysmon.yml'

[frack113]

Ubuntu 20.04

frack113@frack113-virtual-machine:~/sigma/tools$ python3 sigmac -t splunk -c config/generic/sysmon.yml ../rules/windows/process_creation/win_susp_whoami.yml
(EventID="1" Image="*\\whoami.exe")
frack113@frack113-virtual-machine:~/sigma/tools$ 
frack113@frack113-virtual-machine:~/sigma/tools$ ./sigmac -t splunk -c config/generic/sysmon.yml ../rules/windows/process_creation/win_susp_whoami.yml
(EventID="1" Image="*\\whoami.exe")
frack113@frack113-virtual-machine:~/sigma/tools$ 

Windows 10

D:\rootme\sigma\tools>python -V
Python 3.8.1

D:\rootme\sigma\tools>python sigmac -t splunk -c config/generic/sysmon.yml ../rules/windows/process_creation/win_susp_whoami.yml
(EventID="1" Image="*\\whoami.exe")