Install OpenMx in AWS Rstudio (R version 3.4.1)

I am trying to install OpenMx in AWS Rstudio with R version 3.4.1. I've tried the following ways:

> install.packages("OpenMx")
Installing package into ‘/home/Vero_BLSGMM/R/x86_64-redhat-linux-gnu-library/3.4’
(as ‘lib’ is unspecified)

and

> source('https://openmx.ssri.psu.edu/software/getOpenMx.R')

Neither worked. Any advice or suggestion on this situation? Thanks in advance.