R crashes after installing certain packages

Hello,

I?m running R (3.3.1) with R-Studio (0.99.903) and Xquatrz (2.7.11) on my Macbook Pro with macOS Sierra (10.12.1).

I?m facing a weird problem, after installing basic packages such as ? car, plyr, etc. They get installed just fine when I use install.packages() command but the problem comes when I?m calling the package using library() command. As soon as I run this command (ex: library(car)), R crashes and I have to restart R again. I tried installing and re-installing all the applications (R, R-studio and X-Quartz) but can?t get around the problem.

Can you please help me?

Note: I?m not very technically sound in these issues and a solution explained in a layman language will be much appreciated.

Thanks,
Chaitanya
Graduate student
MS in Business Analytics
University of Texas at Dallas