Error: package or namespace load failed for 'ChIPseeker' How do I solve the problem of loading the  bioconductor Chipseeker package? I have installed in the following way and I having an error while loading it and I do not know why.

BiocManager::install("ChIPseeker")
BiocManager::install("TxDb.Hsapiens.UCSC.hg38.knownGene")
BiocManager::install("TxDb.Hsapiens.UCSC.hg19.knownGene")

library(ChIPseeker) # produces and error

Error: package or namespace load failed for 'ChIPseeker': 
  'TxDb.Hsapiens.UCSC.hg19.knownGene' is not exported from 'namespace: TxDb.Hsapiens.UCSC.hg19.knownGene'


Thank you in advance for any help on how to go about this.

session info:

R version 3.5.1 (2018-07-02)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

Matrix products: default

locale:
[1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252    LC_MONETARY=German_Germany.1252
[4] LC_NUMERIC=C                    LC_TIME=German_Germany.1252    

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

other attached packages:
 [1] BiocInstaller_1.32.1                    TxDb.Hsapiens.UCSC.hg19.knownGene_3.2.2
 [3] TxDb.Hsapiens.UCSC.hg38.knownGene_3.4.0 GenomicFeatures_1.34.8                 
 [5] AnnotationDbi_1.44.0                    GenomicRanges_1.34.0                   
 [7] GenomeInfoDb_1.18.2                     IRanges_2.16.0                         
 [9] S4Vectors_0.20.1                        cellrangerRkit_1.1.0                   
[11] Rmisc_1.5                               plyr_1.8.4                             
[13] lattice_0.20-35                         bit64_0.9-7                            
[15] bit_1.1-14                              ggplot2_3.1.1                          
[17] RColorBrewer_1.1-2                      Biobase_2.42.0                         
[19] BiocGenerics_0.28.0                     Matrix_1.2-14                          

loaded via a namespace (and not attached):
Error in x[["Version"]] : subscript out of bounds
In addition: Warning message:
In FUN(X[[i]], ...) : DESCRIPTION von Paket 'digest' fehlt oder zerstört
Simple, use the latest version of R and Bioconductor, now on version 3.6.1 and Bioconductor 3.9. Those are the versions that are supported. If you can't upgrade R, check that BiocManager::valid() is true, you might have ended in some inconsistency between Bioconductor versions. 

Looking at your sessionInfo, you seem to have some problems with the installed libraries, check and correct those too if possible