Don't know how to build task ''

[mariochavez]

Just running rake or rake epub I got the following error, I'm not sure how to fix it.

I did clone quarto repo and installed gem from my local copy, gem un Rubygems seems to be old code.

rake aborted! Don't know how to build task ''

Tasks: TOP => default => deliverables => build/deliverables/my-book.pdf => build/master/prince_master.xhtml => build/master/master.xhtml => build/skeleton.xhtml => build/codex.xhtml => build/sections/my-book.xhtml => build/exports/my-book.html