GnuCash help pages

Thanks to David Rowe for the workaround he provided yesterday to get GnuCash 2.2.0 to start. I now have the difficulty that when I try to access the help pages or the tutorial I get a message saying GnuCash could not find the files for the help documentation. This is likely because the 'gnucash-docs' package is not installed. However I do have the gnucash-docs port installed, as evidenced by the line gnucash-docs @2.0.1_0 (active) in the output of the "port installed" command. Suggestions? Best regards, Christian Cardall