OBIEE 11g Installation Issue - Installer hangs indefinitely

While you were trying to install the OBIEE 11g - 11.1.1.7.0, the installer or configuration wizard hangs indefinitely at the  "Domain Creation" step and no log could be found any where. Not even in the AdminServer.log

Cancel the installer, it is not going to go through.

The following error is logged  in <Oracle_Inventory_Location>/log/install<date-time>.out file:
_______________________________________
Creating a new AdminServer Object ...
AdminServer port is 7001
Starting the domain ...

oracle.as.provisioning.util.ConfigException:
Error while starting the domain.
Cause:
An error occurred while starting the domain.
Action:
See logs for more details.
at oracle.as.provisioning.util.ConfigException.createConfigException(ConfigException.java:123)
at oracle.as.provisioning.weblogic.ASDomain.startDomain(ASDomain.java:3172)
.
etc..
.
. at oracle.as.install.engine.modules.configuration.ConfigurationModule.run(ConfigurationModule.java:83)
at java.lang.Thread.run(Thread.java:619)
Caused by: oracle.as.provisioning.util.ConfigException:
Error while starting the domain.
Cause:
Starting the Admin_Server timed out.
Action:
See logs for more details.
at oracle.as.provisioning.util.ConfigException.createConfigException(ConfigException.java:123)
at oracle.as.provisioning.weblogic.ASD
_______________________________________

The AdminServer.log  shows that the AdminServer was started and you find the below comments:
<BEA-000329> <Started WebLogic Admin Server "AdminServer" for domain "ASDomain" running in Production Mode>

Resolution:
Navigate to /etc directory and check the hosts file.
/]$ vi /etc/hosts

Issues could be one of the below:

• The IP mentioned here could be wrong or multiple IPs are mentioned and multiple hostnames are referenced. So the Adminserver gets confused to select which server needs the installation.
• The file does not have any IP at all.
• The hostname could be wrong.
• An IP V6 - IP could have been referenced.