Deploying FCM after the EPM components

Question

This is version 11.1.2.2. Planning, HFM and FDM are up and running. We are attempting to evaluate FCM
http://www.oracle.com/webfolder/technetwork/tutorials/obe/hyp/FCM11.1.2.2-MultiNodeInstall/FCMMultiNodeInstall.htm#t2
So far I have been following the tutorial from the url above, just that I skipped the EPM component installation and configuration as they are already there.
Under the section "Configuring SOA Suite on Machine A", instead of creating a new weblogic domain "base_domain", I chose to extend from the existing domain "EPMSystem" cause I read from the other documents that the SOA applications and the EPMs need to be on the same domain.
I click through and select the products as advised and set the JDBC and component schema for each of the product, I passed the testing. Just that on step 10, I have the "Extend" domain option to click instead of "Create", so I click "Extend"
The system comes back with an error: "CFGFWK-60321: Duplicate Server listen ports exist in your domain configuration. Port 7001 on AdminServer"
Which 7001 is the port for my WebLogic admin server when deploying the other EPM components. Reading other emails I can find it seems that all configured SOA before EPM.
My questions are:
1. Is it possible to install FCM on top of an existing EPM deployment?
2. Is there anything I have done incorrectly from my description above. Shall I create a new weblogic domain in this case?
Any idea would be much appreciated. Thank you.

Answer 1

Thanks for the reply. I stopped the AdminServer and retried, same error message pops up.
Just that in the second attempt I notice that on the "Select a Weblogic Domain Directory" screen, under the "user_projects" directory, there is an entry of "epmsystem1" (my EPM instance name) and a "EPMSystem" under the "user_projects\domains", which was what I have been choosing, is it correct? EPMSystem is the name I have chosen when configuring the deployment to WebLogic for my EPM components.
Also in the next screen I was given two options 1) "Extend my domain automatically to support the following added products" and 2) "Extend my domain using an existing extension template"
I chose #1, is that correct? The products I have chosen are "Oracle SOA Suite - 11.1.1.0[Oracle_SOA1]" and "Oracle WSM Policy Manager - 11.1.1.0[oracle_common]"
I used to choose also the Oracle Enterprise Manager in my first attempt, but now it is default checked and dimmed for selection.
Is anything above sound weird to you?