The following error was reported when the example code was run:

library(methyAnalysis)
## load the example data
data(exampleMethyGenoSet)

eatmapByChromosome(exampleMethyGenoSet, gene='6493',  genomicFeature='TxDb.Hsapiens.UCSC.hg19.knownGene', includeGeneBody=TRUE, newPlot=FALSE)
Error in `genome<-`(`*tmp*`, value = "hg19") :
  Failed to set session genome to 'hg19'

By the way: everything is okay for plotMethylationHeatmapByGene

> sessionInfo()
R version 3.3.1 (2016-06-21)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.1 LTS

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
 [1] stats4    parallel  grid      stats     graphics  grDevices utils
 [8] datasets  methods   base