ALTLVDS pin parametres in assignment editor

Tahnk you both of you, I realy apreciate it, I am using stratix iv (EP4SGX230KF40C), I remove the altiobuf, you are right.

now I juste use the non inverted pins that I assign IO standard to LVDS but I still have the same errors :

Error: Pin H4 does not support I/O standard LVDS for dataG_o[0]

Error: Pin V4 does not support I/O standard LVDS for dataR_o[0]

Error: Pin F4 does not support I/O standard LVDS for dataB_o[0]

Error: Pin AM4 does not support I/O standard LVDS for dataCLK_o[0]

Error: Pin H3 does not support I/O standard LVDS for dataG_o[0](n)

Error: Pin V3 does not support I/O standard LVDS for dataR_o[0](n)

Error: Pin F3 does not support I/O standard LVDS for dataB_o[0](n)

Error: Pin AM3 does not support I/O standard LVDS for dataCLK_o[0](n)

:s I don't know what to do...

I will try to re-read the data sheet.