R help - Sep 2010 - Help with ugarchspec function

Hi

I am using the ugarchspec function from the rgarch package to fit a mean
variance model jointly. Following is the code I'm using:
> spec = ugarchspec(variance.model = list(model="eGARCH",
garchOrder=c(1,1)), mean.model = list(armaOrder=c(1,1)))

On doing this, I get the following error:

Error in ugarchspec(variance.model = list(model = "eGARCH", garchOrder
c(1,  :
  could not find function ".DistributionBounds"

Any help on why this is happening? any way to solve this?

Thanks
Priyesh

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