Hi,

"RGChannelSet" is a class of data in minfi package. Very recently "SummarizedExperiment" package has change their class definition and so "RGChannelSet" has changed as "RGChannelSet" class is dependent on "SummarizedExperiment".

Now I have saved a data in "RGChannelSet" class and I have lost my raw idat files from which I have created that "RGChannelSet" data object.

Now when I try to read these saved data in my updated R/Bioconductor it says

Error in nrow(x@elementMetadata) : 
   no slot of name "elementMetadata" for this object of class "RGChannelSet"

Now in this situation, can any one please help me to read this old "RGChannelSet" class data into new "RGChannelSet" class or read into new R/Bioconductor setup??

Thanks in advance.