No compatible version found: grunt-contrib-mincss@'>=0.4.0 <0.5.0'

I have this warning when run npm install , and available version for "grunt-contrib-mincss" are ["0.1.0","0.2.0","0.3.0","0.3.1","0.3.2","0.4.0-rc7"], I think it's better to remove "~" from package.json for "grunt-contrib-mincss"

They changed the package name to grunt-contrib-cssmin. You have to change it in the package.json and the grunt file.