Error in tailScan :    object 'x' not found

Hi, @feifei592, 

when I run example, I met the following problem even in the start:

GV1tailDF<-tailScan(fastqfile,mcans=5,findUmi = F,resultpath = "./", samplename = "GV1",tailAnchorLen=8,minTailLen=8,realTailLen=20,maxNtail=2,mapping=F)

Error in tailScan(fastqfile, mcans = 5, findUmi = F, resultpath = "./",  : 
  object 'x' not found

Anyone has similar problem?

thank you.