[FIXED] Error when running Mage Generate when syncing Hugo internal templates

I have forked Hugo, created a branch and committed some changes to the internal templates locally.

But when I run mage generate to sync the changes I get:

can't load package: package /home/alex/work/src/hugo/tpl/tplimpl/embedded/generate: import "/home/alex/work/src/hugo/tpl/tplimpl/embedded/generate": cannot import absolute path

I have edited the magefile.go to the following:

packageName = "$GOPATH/src/hugo/"

What am I missing?

Turns out that I was setting the path the wrong way. It should have been:

packageName = "hugo"

Also mage has some aggressive and slightly misleading error handling see here