CoveragePlot

[JiFansen]

CoveragePlot(
object = pbmc,
region = rownames(da_peaks)[c(1,5)],
sep = c(":", "-"),
annotation = EnsDb.Hsapiens.v75,
extend.upstream = 20000,
extend.downstream = 20000,
ncol = 1
)
This function has error when I tested the tutorial of signac. Could you please help me address this issue?