I am using IA 18 Developer edition
During Feature Selection, I selected some of the RunTime like .Net 4.0 (x86/64), Crystal report, but I got this message during installation
please update to the latest IA 18 version available (18.08).
Due the error you posted, I suppose you are using a previous IA 18 version ... that it's not anymore available.
"IMPORTANT! Always backup your trial version installer, as well as your activation file, in a safe location. InstallAware does not keep old version trial downloads or activation files; therefore once your Customer Account expires, you will not be able to re-install your product unless you have previously made backups."
I may suggest you to consider the possibility to download the full installer with Runtime next time.