Cannot set pins in ep4ce10e22c8n as LVDS output.

I was trying to set up communication with an LCD, but for some reason i can't set any differential capable pins to LVDS, only LVDS_e_3R. The error during compilation is: "Error (169218): I/O standard LVDS on output or bidirectional pin <PIN> is not supported by the device at location 38 (PAD_45) -- only input pins of this I/O standard are allowed at this location". I can't even find any datasheet thas specifies, which pins are input or outputs.