%Error: AP: should not have same Primary and Secondary controller name

[DATHOZ]

This is a weird error while trying to reverse AP on 9800 primary and secondary server

Here is an example

wlc-ha-4# show ap name ap-0064-2-541 config general | inc Controller
Primary Cisco Controller Name : wlc-ha-4
Primary Cisco Controller IP Address : 172.x.x.y
Secondary Cisco Controller Name : wlc-ha-5
Secondary Cisco Controller IP Address : 172.x.x.x
Tertiary Cisco Controller Name : Not Configured
Tertiary Cisco Controller IP Address : 0.0.0.0

wlc-ha-4#ap name ap-0064-2-541 controller primary wlc-ha-5 172.x.x.y
% Error: AP: ap-0064-2-541 should not have same Primary and Secondary controller name

wlc-ha-4#ap name ap-0064-2-541 controller secondary wlc-ha-4 172.x.x.x
% Error: AP: ap-0064-2-541 should not have same Secondary and Primary controller name

I tried changing to a diff name and it still does not work

wlc-ha-4# ap name ap-0064-2-541 controller primary wlc5 172.x.x.y
% Error: f4db.e6fb.5120Primary : Primary, Secondary and Tertiary IP address must be unique

wlc-ha-4#ap name ap-0064-2-541 controller secondary wlc4 172.x.x.x
% Error: f4db.e6fb.5120Secondary : Primary, Secondary and Tertiary IP address must be unique

[Leo Laohoo · Accepted solution]

1. Configure the secondary controller details FIRST. Enter a fictitious detail.  
2. Enter the REAL primary controller details next. 
3. Enter the REAL secondary controller details last.

[Ambuj M]

Try Remove the secondary controller config, then change primary controller config then add secondary controller. 
from cli try this command to remove 

config ap secondary-base ' ' APHOSTNAME 0.0.0.0

Note that between the quotes there is 1 space. 
If it does not work try GUI.

secondly if you have prime, you can easily do it with a lightweight AP config template.