Multiple pin error?

Hi ,

I have removed all the additional pin assignments which were imported from DE2_pin_assignemnet file.But still getting ERROR.Please find the attached pin assignment doc and error file. Below is top level pins that I am using.

module rs232lab(

input CLOCK_50, // 50 MHz clock

input [3:0] KEY, // Pushbutton[3:0]

input [17:0] SW, // Toggle Switch[17:0]

output [6:0] HEX0,HEX1,HEX2,HEX3,HEX4,HEX5,HEX6,HEX7, // Seven Segment Digits

output [8:0] LEDG, // LED Green

output [17:0] LEDR, // LED Red

inout [35:0] GPIO // GPIO Connections

// UART

output UART_TXD, // UART Transmitter

input UART_RXD, // UART Receiver

// LCD Module 16X2

output LCD_ON, // LCD Power ON/OFF

output LCD_BLON, // LCD Back Light ON/OFF

output LCD_RW, // LCD Read/Write Select, 0 = Write, 1 = Read

output LCD_EN, // LCD Enable

output LCD_RS, // LCD Command/Data Select, 0 = Command, 1 = Data

inout [7:0] LCD_DATA // LCD Data bus 8 bits

)

// All inout port turn to tri-state

assign GPIO = 36'hzzzzzzzzz;

Thanks,

Gagan