AviSynth to VDub Error

[KitBikyuu]

Everytime I try to export anything into VDub it comes up with this error:
Avisynth Open Failure: MPEG2Source: Couldn't Open Source File, or obsolete D2V file (I:\AMVTOOLS\D Grayman 1.avs, line 3)

I know this means that there is an error in line 3, but i cant find it. I have even gone back and re-done the d2v. Could anybody help me?
Heres my code:

LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\DGDecode.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\Decomb521.dll")
MPEG2Source("I:\AMVTOOLS\D2V\DGM 001-002.d2v", idct=5, CPU=4, iPP=true)

Am i possibly missing a codec or something? I've updated everything, or do I have to use the older codecs?
Thanks.

[Scintilla]

You need to make sure that you're making the D2V file with the version of DGIndex that came with your copy of DGDecode. If DGIndex and DGDecode don't match versions, this error message will often result.