Error message in getTargetAnnotationStats

[abcosta]

Hi,

I am trying to use genomation and methylKit to analyze some RRBS data.
I identified the identified the significantly differentially methylated cytosines (q-value threshold of 0.01 and a minimum change in percent methylation of 25%) and used for the gene annotation analysis a .gtf file.
I ended up using two scripts (gtfToGenePred and genePredToBed) from http://hgdownload.cse.ucsc.edu/admin/exe/linux.x86_64/ to convert my .gtf file to .bed
Everything seems to have worked fine until I tried to use "getTargetAnnotationStats" which gives me a error message (please see below):
#R code

mydiff25 <- getMethylDiff(mydiff, difference = 25, qvalue = 0.01)
nrow(mydiff25)
[1] 178

library(genomation)
gene.obj<-readTranscriptFeatures("ensGene_revised-sorted.bed")
Reading the table...
Calculating intron coordinates...
Calculating exon coordinates...
Calculating TSS coordinates...
Calculating promoter coordinates...
Outputting the final GRangesList...

ann=annotateWithGeneParts(as(mydiff25, "GRanges"), gene.obj)
ann
Summary of target set annotation with genic parts Rows in target set: 178

---

percentage of target features overlapping with annotation:
promoter exon intron intergenic
3.93 6.74 35.39 57.87
percentage of target features overlapping with annotation:
(with promoter > exon > intron precedence):
promoter exon intron intergenic
3.93 4.49 33.71 57.87
percentage of annotation boundaries with feature overlap:
promoter exon intron
0.03 0.00 0.01
summary of distances to the nearest TSS:
Min. 1st Qu. Median Mean 3rd Qu. Max.
132 4327 13174 233837 53026 5049539

getTargetAnnotationStats(ann,percentage=TRUE,precedence=TRUE)
Error in getTargetAnnotationStats(ann, percentage = TRUE, precedence = TRUE) : unused arguments (ann, percentage = TRUE, precedence = TRUE)

Could you help me to figure out what is the issue?

Any help on this is much appreciated.
Cheers