Getting "Error in (function (x) : attempt to apply non-function"

[alanlamsiu]

Hi @rj-patrick. I came across the message, "Error in (function (x) : attempt to apply non-function", when running count peaks as shown below. CountPeaks(peak.sites.file="merged_peaks.txt", gtf.file="", bamfile="", whitelist.file="<barcodes.tsv>", output.dir="out_dir", countUMI=TRUE, ncores=10)`

The "merged_peaks.txt" file was generated by the updated merge peak function. Do you have any suggestions regarding getting this message? Thanks!