User definition
The same user must be used for both compile_ae and
register_ae. If the --user option is not specified, the value set
by the NZ_USER environment variable is used by default.
If the --user switch is supplied in only one command and NZ_USER does not match
the value that is specified by --user, compile_ae deploys the file
to a different location than that used by register_ae, causing an error.