Oracle EBS R12.2.x some cloning issues and fixes

1. Oracle pre-clone fails with the following error.
======================================================

START: Creating WLS config archive.
Script Executed in 1321 milliseconds, returning status 255
ERROR: Script failed, exit code 255

FIX
=====
To implement the solution, please execute the following steps:
1. Stop all services from patch and run editions
    You can use EBSapps.env to ensure that you are on the correct file edition
2. Restart your environment
3. Rerun adpreclone




2.clone files with below error:
==================================

#############################################################
Started ApplyAppsTier at Mon Aug 31 15:13:39 EDT 2015
Version:
        ApplyAppsTier.java      :       120.11.12020000.6
#############################################################
Found the directory : /u01/oracle/TEST/fs1/FMW_Home
Exiting cloning as FMW Home already exists..

FIX:
=====
remove or move  FMW_Home and rerun rapid clone






3.Clone fails with following error.
======================================

#############################################################
Started ApplyAppsTier at Mon Aug 31 15:18:25 EDT 2015
Version:
        ApplyAppsTier.java      :       120.11.12020000.6
#############################################################
Below Oracle Homes are already registered in the global inventory:
/u01/oracle/TEST/fs1/FMW_Home/Oracle_EBS-app1
/u01/oracle/TEST/fs1/FMW_Home/webtier
/u01/oracle/TEST/fs1/FMW_Home/oracle_common

FIX:
====
Make sure EBS environment is unset before running rapid clone.