Help with an error from chromVAR

Question

[Chris]

Hi all, I am trying to follow this vignette and got an error that I could not found the solution on the Internet.

bg <- getBackgroundPeaks(object = counts_filtered)

Error in get_background_peaks_core(object, bias, niterations, w, bs) : 
  length(bias) == length(fragments_per_peak) is not TRUE

Would you have a suggestion? Thank you so much!

https://greenleaflab.github.io/chromVAR/articles/Introduction.html