FPGA Central

We are trying to build an ipcore in XPS. Based on the vhdl code we got from digilent's site, we are trying to interface with a graphics lcd on a Nexys.

The vhdl code uses an inout port and from our understanding requires a tri-state to become an ipcore. When we are trying generate the netlist in XPS, we get the error:

ERROR:Xst:2585 - Port <dbLcd_I> of instance <fsl_glcd_controller_0> does not exist in definition <fsl_glcd_controller>. ERROR:Xst:2585 - Port <dbLcd_O> of instance <fsl_glcd_controller_0> does not exist in definition <fsl_glcd_controller>. ERROR:Xst:2585 - Port <dbLcd_T> of instance <fsl_glcd_controller_0> does not exist in definition <fsl_glcd_controller>.

We are unsure how to continue. Send help.