codec problem c6455

i have a dsk c6455 , i need to use the codec aic23 to transfer a voice signal using the mic and hearing it back on the headphone output , i did the following :

i downloaded a package contains some  examples concerned with  my kit from spectrum digital at http://c6000.spectrumdigital.com/dsk6455/v2/ , i made a new project and i copied the content of the dsk_app folder located in the ..........\boards\dsk6455_v2\examples\dsk_app in my project in the workspace , i tried then to build my project i get 6 errors which i took much time trying to fix them..

please any help with this ,  thanks inadvance......