Yuglify compressor can't find binary from package installed through npm
After 3 hours of suffering, I have found the solution.
This is happening because of a misnaming error, if you install from a package manager (npm) your bin may be called nodejs so you just need to symlink it like this:
ln -s /usr/bin/nodejs /usr/bin/nodeNow it is working. This didn't happen with the older version, its is something new. But at least it is working again. I hope this helps someone else out there. :)
In my case both uglify-js and cssmin were somehow not installed.
So I have re-installed them again by using following command and then it starts working again.
sudo npm install -g cssmin uglify-js