Your view folder path does not appear to be set correctly. Please open the following

I had this problem tomorrow, with a fresh new CI install, latest 3.0 release.
It happens only in unix/linux environments. I solved it by:

1. set the project folder permission to 755. Eg. sudo chmod 755 /var/www/myCIproject/
2. sudo find /var/www/myCIproject/ -type d -exec chmod 755 {} \;

The last line searchs for every folder inside myCIproject (including application/views/) folder and chmods 755
I know it is a dirty solution, but it worked fine for me

Enrique
https://beza.com.ar