Description
Installing this package from npm no longer works if you're using a more recent version of nodejs (v4.x or v5.x) this is due to a current failure in NaN. There is a patch involved but it means working with a specific branch of imagemacgick-native and using that as the dependency.
See this comment here for more information. elad/node-imagemagick-native#102 (comment)
Doing a clone of metalsmith-convert, changing the install location to this branch elad/node-imagemagick-native.git#travis-4.1
and then installing locally into my project allows me to use metalsmith-convert absolutely as normal.
Happy to submit a PR if you want however wasn't certain of how to run the tests etc to package it all up properly to validate nothing else has broken as a result of the upgrade.