invalid class “ScoreMatrix” object

[LiyanJi-code]

## When I run the code as below, I got an error. Could you help me deal with the bugs? Thanks a lot.
data(cage)
data(promoters)
scores1=ScoreMatrix(target=cage,windows=promoters,strand.aware=TRUE,
weight.col="tpm")

library(GenomicRanges)
covs = coverage(cage)
scores2 = ScoreMatrix(target=covs,windows=promoters,strand.aware=TRUE)
scores2

bam.file = system.file('unitTests/test.bam', package='genomation')
windows = GRanges(rep(c(1,2),each=2), IRanges(rep(c(1,2), times=2), width=5))
scores3 = ScoreMatrix(target=bam.file,windows=windows, type='bam')
scores3

Error in validObject(.Object) :
invalid class “ScoreMatrix” object: superclass "vector_OR_Vector" not defined in the environment of the object's class

sessionInfo()
R version 3.6.0 (2019-04-26)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: CentOS release 6.9 (Final)

[katwre]

Hi @Julian-jly ,

what version of genomation are you using? I just quickly checked your code, and for me, it works just fine. Do you use S4Vectors package version >= 0.17.25 ?

Kasia