Hi,
This message means that the user account does not have permission to write to that location. You can check permissions by navigating to the preceding folder (/usr/local/ in this case) and running the command "ls -la" to check ownership and permissions.
Use chmod command to fix the permissions and allow your user account to write to the location.
sudo chmod u+rwx -R /path/to/directory
will give your user account read, write, and execute permissions, and will allow any other account to read or execute (run) files in the directory or subdirectories.
