Autoconfig Error : ORA-01422: exact fetch returns more than requested number of rows

Issue: Autoconfig on EBS 12.2 environment fails while running script txkGenADOPWrapper.pl

Below is the error message  from logfile

=======================

Script Name    : txkGenADOPWrapper.pl

Script Version : 120.0.12020000.3

ERROR DESCRIPTION:

(*******FATAL ERROR*******

PROGRAM : (/test/app/fs1/inst/apps/test_mtnode1/admin/install/txkGenADOPWrapper.pl)

TIME    : Wed Nov 25 04:22:34 2020

FUNCTION: TXK::SQLPLUS::_doExecute [ Level 3 ]

MESSAGES:

SQLPLUS error: buffer=

 

SQL*Plus: Release 10.1.0.5.0 - Production on Wed Nov 25 04:22:33 2020

 

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

 

SQL> SQL> Connected.

SQL> SELECT ad_zd_adop.get_node_type('mtnode1') FROM DUAL

       *

ERROR at line 1:

ORA-01422: exact fetch returns more than requested number of rows

ORA-06512: at "APPS.AD_ZD_ADOP", line 3010

=======================

Cause:

FND_NODES table has incorrect node information.

Found an extra row in FND_NODES table where node_name is null after clone.

Solution:

1. Clean up FND_NODES table

Login to database as apps user

sqlplus apps/<password>

    

sql>exec FND_CONC_CLONE.SETUP_CLEAN;

2.Run Autoconfig on Database node(s).

cd $ORACLE_HOME/appsutil/bin

adconfig.sh

[Provide Database Context file  and apps Password]

3. Run Autoconfig on apps tier

Login to Application node 

Source the RUN filesystem environment file.

cd $AD_TOP/bin

adconfig.sh

[Provide Applictions Context file and apps Password]