Quote Originally Posted by Mike2545 View Post
Ok I changed them all to _FCMEN.
That is what you had ??
Error[113] c:\pbp\18f4550.inc 21 : Symbol not previously defined (_FCMEN_OFF_1H)
Now my led does not blink anymore...but the error is gone!
You code appears that you want to use the internal OSC but the configs show an external.

Try this
_FOSC_INTOSC_HS_1H
in place of
_FOSC_HSPLL_HS_1H

You can go to the MPASM Suite in program files\microchip, look at the *.inc file there to see all of the config options. Do not modify that file.