While installing the Nodejs package Browsertime, I got the following error. I tried a few things, but nothing worked. After a little bit of search, I found npmjs documentation and tried  –unsafe-perm flag. Ex: for my installation. It worked like a charm. I hope it helps you too.

sharp EACCES permission denied on CentOS RHEL 7 FIXED - 50sharp EACCES permission denied on CentOS RHEL 7 FIXED - 55sharp EACCES permission denied on CentOS RHEL 7 FIXED - 93sharp EACCES permission denied on CentOS RHEL 7 FIXED - 47sharp EACCES permission denied on CentOS RHEL 7 FIXED - 89sharp EACCES permission denied on CentOS RHEL 7 FIXED - 99sharp EACCES permission denied on CentOS RHEL 7 FIXED - 8sharp EACCES permission denied on CentOS RHEL 7 FIXED - 22sharp EACCES permission denied on CentOS RHEL 7 FIXED - 54sharp EACCES permission denied on CentOS RHEL 7 FIXED - 59sharp EACCES permission denied on CentOS RHEL 7 FIXED - 76sharp EACCES permission denied on CentOS RHEL 7 FIXED - 4sharp EACCES permission denied on CentOS RHEL 7 FIXED - 17sharp EACCES permission denied on CentOS RHEL 7 FIXED - 33sharp EACCES permission denied on CentOS RHEL 7 FIXED - 97sharp EACCES permission denied on CentOS RHEL 7 FIXED - 33sharp EACCES permission denied on CentOS RHEL 7 FIXED - 56sharp EACCES permission denied on CentOS RHEL 7 FIXED - 31sharp EACCES permission denied on CentOS RHEL 7 FIXED - 87sharp EACCES permission denied on CentOS RHEL 7 FIXED - 27sharp EACCES permission denied on CentOS RHEL 7 FIXED - 12sharp EACCES permission denied on CentOS RHEL 7 FIXED - 14sharp EACCES permission denied on CentOS RHEL 7 FIXED - 46