2391537 - IMPORT PROPER return SYNTAX ERROR in object CL_DD_TABLE_CNV_STEPS_TT======CP

While using SPAM, in the IMPORT PROPER phase, the upgrade stops with the following short dump:

Runtime Errors SYNTAX_ERROR

ABAP Program CL_DD_TABLE_CNV_STEPS_TT======CP
Application Component BC-DWB-DIC-AC
Date and Time 14.11.2016 17:09:07 

Short Text
Syntax error in program "CL_DD_TABLE_CNV_STEPS_TT======CP ".

What happened?

Error in the ABAP Application Program

The current ABAP program "CL_DD_TABLE_CONVERTER=========CP" had to be
terminated because it has
come across a statement that unfortunately cannot be executed.
In include "CL_DD_TABLE_CNV_STEPS_TT======CM00K ", in line 1 of program
"CL_DD_TABLE_CNV_STEPS_TT======CP ", the following syntax errors
have occurred:
Method "INIT" has already been implemented.

SAP NetWeaver 7.4

IMPORT_PROPER, upgrade, update, SPAM, SAINT, activation, dump, syntax error, transport request, import proper , KBA , BC-DWB-DIC-AC , ABAP Dictionary Activation and Conversion , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem