XCMS Plot Chromatograms after Peak Detection June 02, 2020, 09:47:35 AM I am going through the XCMS tutorial on the Bioconductor page (https://bioconductor.org/packages/devel/bioc/vignettes/xcms/inst/doc/xcms.html#1_introduction). I get the following error message when I try to plot chromatograms that have been processed (xchromatograms): Error in (function (cl, name, valueClass) : ‘.processHistory’ is not a slot in class “list”Referencing back to the tutorial, I start getting errors when I run the code below. Any help is appreciated. Thank you. sample_colors <- group_colors[xchr$sample_group] plot(xchr, col = sample_colors, peakBg = sample_colors[chromPeaks(xchr)[, "column"]]) Quote Selected