'How should I fix it to run epiR success

I run install.packages(epiR) and library(epiR) and then it said the download source packages are in C:\\Users\\user\\AppData\\Local\\Temp\\Rtmpq2xPjc\\download_packages and I got following error in library(epiR) :

there is no package called epiR

I must use it to calculate sample size for my project so wish it can



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