How to install RTC P2 on RedHat Linux?

I & my team was attempting to install RTC 6.0.4 into Eclipse Neon version 4.6.2 on a RedHat Linux machine. I recieved a dependency error for teh International Components for Unicode for JAVA (ICU4J) where there is already an ICU installed, version 4.2.1.v20100412, but the RTC plugin has a dependency for ICU version 56.1.0.v201601250100. The install is complaining that both of these ICUs can't be installed at the same time.
One answer

Are you guys in the same team?
https://jazz.net/forum/questions/248523/can-anyone-offer-help-installing-rtc-p2-into-eclipse-on-redhat-linux
If you try to install RTC on top of RSA, you need to make sure it's compatible (it is in most cases).
http://www-01.ibm.com/support/docview.wss?uid=swg21279139
If you still face this problem, I suggest you contact IBM Support.