I found the solution. On the EMC Community Network, I found a thread titled "Error with SRM 5" in the VNX area. In it the user was getting similar effects.
The end result was to not have NaviCLI NOT create the "secure" credentials file, and then restart the Vmware services.
After I re-ran the NaviCLI install, did a "modify", and told it to not create the file, then restarted the VMWare services on the SRM server, the "add array" worked fine.