Error with App note 271 FRDMK64F: Using MDK Middleware Driver_ETH_MAC0 multiply defined

I am carefully following this app note apnt_271.pdf.
However at some point I reach those errors below on page 10 of the app note.

.\Objects\mlProj.axf: Error: L6200E: Symbol Driver_ETH_MAC0 multiply defined (by eth_ksz8851snl.o and emac_mk64f.o).
.\Objects\mlProj.axf: Error: L6200E: Symbol Driver_ETH_PHY0 multiply defined (by phy_ksz8081rna.o and eth_ksz8851snl.o).

I am using uvision ver 5.18. I suspect the note was working in earlier revisions.
The middleware version I am using is V7.0.0 but the source code of the app note is V5.00.

Everything was manageable until when I integrate the network stack. with the http server.
Any help is appreciated.
MiKL~