catastrophic error: cannot open source file "iostream"

Hello All,

I have installed Intel Parallel Studio XE v18.0.1 on my mac and was trying to run a hello_world.cpp program. But I got into the following error.

hello.cpp(1): catastrophic error: cannot open source file "iostream"
  #include<iostream>
                    ^
compilation aborted hello.cpp (code 4)

Then I checked the version of icc and icpc from command line and found both of them are version 18.0.1. Any idea how to solve this issue?

Thanks in advance,

Fazlay