doubt in lpc 810 kit programming

[lpcware]

Content originally posted in LPCWare by santosh99 on Sat Jan 04 12:34:03 MST 2014
Hello...i have a doubt in building the "LPC810_CodeBase-master" program...i'm  getting a error while building..it says..
Error :'__SYSTEM_CLOCK' undeclared(first use in this function)
         

Please help me..im trying hard to get out of this..but im unable to..
Im uploading the photographs of error shown

thanks in advance

I

[lpcware]

Content originally posted in LPCWare by aakicee on Mon Apr 06 22:29:05 MST 2015
BUT IT'S not working..

[lpcware]

Content originally posted in LPCWare by onkel.jack@t-online.de on Mon Jan 06 08:02:05 MST 2014
seems you miss to include system_LPC8xx.h
__SYSTEM_CLOCK is defined in there.