The R version issue in you DESCRIPTION

[guokai8]

Hi, I guess there is an typo error in your DESCRIPTION. See below
Depends: R (>= 3.4.0)
Maybe should be Depends: R (>= 3.3.0).
It will be reported an error if you using

install_github("edmr", username = "ShengLi",build_vignettes=FALSE)

[wangyunpengbio]

I find the same problem last year and fail to install,but now it is successful!