I tend to library the 'IRanges' packages ,but got some error 

Error : In exports from the namespace 'IRanges method is found not S4 generic function' compare ', 'queryHits',' queryLength ', 'subjectHits',' subjectLength '
Error: ‘IRanges’

Help you can help me .

Does it help to run and correct the problems identified by

BiocInstaller::biocValid()

? If not, please EDIT your question to include the output of the R command sessionInfo(), after the error that you report above has occurred.