1000 series LAPs not able to join the Wireless LAN controlle

[guest]

1000 series LAPs not able to join the Wireless LAN controller, WLC runs version 5.0
This is because WLC software release 5.0.148.0 or later is not compatible with Cisco Aironet 1000 series APs. If you have a Cisco 1000 series LAP in a network, which runs WLC versions 5.0.48.0, the 1000 series LAP does not join the controller and you see this trap message on the WLC.