Hi..I tried to load minfi package in Rstudio, but the loading says error: 

Error: package or namespace load failed for ‘minfi’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called ‘readr’

And when I tried to run the command, it gives me following error:

CruzMethylationSampleSheet <- read.metharray.sheet("C:/Users/sinha.puja/Desktop/baseDir2")
Error in read.metharray.sheet("C:/Users/sinha.puja/Desktop/baseDir2") : 
  could not find function "read.metharray.sheet"

Any one who have similar error or knows how to resolve it then please help me because earlier the same works fine but now I am having issues.

It seems to suggest you are missing the dependency package "readr". Please try BiocManager::install("readr")