使用ChIPQC获取错误 - “函数（类，类，fdef，mtable）中的错误”

Question

我使用ChIPQC包来评估ChIP-Seq实验的质量。但我收到以下错误：

samples = read.table("samples.csv",sep=",",header=T)
samples
SampleID Tissue Factor Replicate     bamReads   bamControl ControlID
1   chip1    tissue    factor         1 zr1088_4.bam zr1088_3.bam   control
                           Peaks
1 zr1088_4_minus_control_summits.bed
chip = ChIPQC(samples,annotation="mm10")

chip tissue factor   1 bed
Checking chromosomes:
[1] "chr1"
Compiling annotation...
Computing metrics for 2 samples...

  

（函数（classes，fdef，mtable）中的错误：         无法为签名'“remote-error”'

找到函数'fragmentlength'的继承方法