Connecting SEG7[63..0] bus to HEX7..0 pins

Hi all,

How do we connect the seven segment display pins to the HEX pins?

http://i44.tinypic.com/2l0qz5.png

I have tried the above method but it gives the following error:

Error (275021): Illegal wire or bus name "{HEX7[7..0],HEX6[7..0],HEX5[7..0],HEX4[7..0],HEX3[7..0],HEX2[7..0],HEX1[7..0],HEX0[7..0]}" of type pin