Get rid of the double undescores before CONFIG1 and CONFIG2.
Code:
@ __config _CONFIG1, _FOSC_INTOSC & _WDTE_NSLEEP & _PWRTE_ON & _MCLRE_OFF & _BOREN_ON & _IESO_OFF & _FCMEN_ON
@ __config _CONFIG2, _VCAPEN_OFF & _PLLEN_ON & _STVREN_ON & _BORV_25 & _LVP_OFF