(FAQ) How can I fix the rules directory warning when using manual Spam Filter learning?

When running manual Spam Filter learning, I get an error:  config: could not find site rules directory.  Does this mean something isn't working?

This error can be ignored as MDaemon's implementation of SpamAssassin doesn't use site rules.  When using manual learning run it like this example (your drive letter or path may need to be changed): 

C:\MDaemon\SpamAssassin>sa-learn -C ./rules --siteconfigpath=./default_rules -D --dump magic