11G Installation Error " em.ear" is missing

Issue     :  em.ear is missing while installing 11G.

Reason   : The installer could not find the correct files because it was expecting them to be in the one folder and not two different one.
Solution:
windows:
Copy the contents of the components folder into the one components folder, cleaned up the failed install and then re-ran the install operation. This will solve the problem.

Linux:
To unzip the 11g s/w in same directory:

# 11.2.0.1
unzip linux.x64_11gR2_database_1of2.zip -d /home/oracle/softwaredump
unzip linux.x64_11gR2_database_2of2.zip -d /home/oracle/softwaredump

#11.2.0.2
unzip p10098816_112020_Linux-x86-64_1of7.zip -d /home/oracle/softwaredump
unzip p10098816_112020_Linux-x86-64_2of7.zip -d /home/oracle/softwaredump

#11.2.0.3 ##for upgrading patch sets:
unzip p10404530_112030_Linux-x86-64_1of7.zip -d /home/oracle/softwaredump
unzip p10404530_112030_Linux-x86-64_2of7.zip -d /home/oracle/softwaredump