ERROR 1273 (HY000) at line 446: Unknown collation: 'utf8mb4_unicode_ci'

I was getting the above mentioned error while restoring a database from a mysql dump file. I followed the 19 th answer in the below URL and the restoration worked fine for me 

http://stackoverflow.com/questions/29916610/1273-unknown-collation-utf8mb4-unicode-ci-cpanel