[R] chippeakanno package: "getAllPeakSequence" problem

[Nico902]

Hi all,

I am using the package ChIPpeakAnno, and I have a problem with the function
getAllPeakSequence. This is related to object oriented programming I think,
I have the following message:

> peaksWithSequences <- getAllPeakSequence(peakList, upstream = 100,
> downstream = 100, genome = Hsapiens)
Error in validObject(.Object) : 
  invalid class "GRanges" object: superclass "Sequence" not defined in the
environment of the object's class


Is the error coming from my configuration or from the code? I do not know
many things about OOP in R.

Thanks.

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