Dear Ebrown1955,
Thanks very much for you quick reply.
Sorry that I am sort of illiterate in terms of programming
Since the sessionInfo() suggested that
From Platform: x86_64-unknown-linux-gnu (64-bit)
I guess I am using unix based OS.
and I tried your suggestion:
-bash-3.2$ sudo apt-get install libcurl-devel
then I got:
[sudo] password for huang: #huang is my username
after I input my password:
sudo: apt-get: command not found
Could you tell what went wrong from that? Thanks very much.
Jun