IRanges Package

I am currently trying to use the CONQUER toolbox found here: GitHub - roderickslieker/CONQUER. When following the installation instructions I get the following error: package ‘IRanges’ is not available (for R version 4.0.2). I then reinstalled r version 4.0.2 and tried installing it again and I still get the same error. even on the correct version of R. Any help would be appreciated.

IRanges is not in CRAN, you have to install it from Bioconductor

if (!require("BiocManager", quietly = TRUE))
    install.packages("BiocManager")

BiocManager::install("IRanges")

If you get an error message while doing this, please post the complete console output you get.

Since you are using an old R version you might need to use an older Bioconductor release as well

BiocManager::install("IRanges",  version = "3.15")