Answer by pahan for Meteor: how to add packages manually using smart.json

you are using incorrect git clone URLs. try this in your smart.json

{"packages": {"scss": {},"iron-router": {},"normalize.css": {"git": "https://github.com/rithis-archive/meteor-normalize.css.git"    },"Meteor.cron": {"git": "https://github.com/alexsuslov/Meteor.cron.git"    }}