3434412 - Errors while implementing SAP Note 2745851 - Business Process Improvement Content for "SAP Readiness Check 2.0"

While implementing SAP note 2745851 - Business Process Improvement Content for "SAP Readiness Check 2.0"/"Process Discovery (evolution of SAP Business Scenario Recommendations)"/"SAP Innovation and Optimization Pathfinder"/"SAP Signavio Process Insights-Discovery" one or more of the following errors are occurring(not limited to this list):

• Method "ADDTOJSON" is not declared or inherited in class "/SDF/CL_S4RC20".
• Method "CONVERT_TABLE_TO_JSON" is unknown or PROTECTED or PRIVATE.
• <Object Type> <Object Name> has already been implemented.
• Type "/SDF/IF_S4RC20" is unknown.
• "Object type <Object Type> does not exist".
• Method "CONVERT_FIELD_TO_JSON" does not exist.
• The field "PIT_DETAIL_LIST" is unknown, but there is a field with the similar name "PCT_DETAIL_LIST".

The experienced syntax errors are appearing for the following ABAP coding objects delivered by SAP note 2745851:

• Class                    /SDF/CL_S4RC20                             Readiness Check 2.0
• Class                    /SDF/CL_S4RC20 BPA                       Readiness Check 2.0
• Class                    /SDF/CL_S4RC20_FACTORY               Readiness Check BPA Factory
• Class                    /SDF/CL_S4RC20_REALCHECK           BP Reality Check
• Class                    /SDF/CL_S4RC20_VALUEOPP             Value Opportunity Report
• Class Interface     /SDF/IF_S4RC20 
• Function Module  /SDF/BPM_7X_S4RC20_GET_DATA      Get Data
• Function Module  /SDF/BPM_7X_S4RC20_GET_KPIS       Get KPI List

Readiness Check, Process Discovery, Pathfinder, ADDTOJSON, CONVERT_TABLE_TO_JSON, has already been implemented, is unknown, does not exist, /SDF/CL_S4RC20 BPA, /SDF/CL_S4RC20_FACTORY, /SDF/CL_S4RC20_REALCHECK, /SDF/CL_S4RC20_VALUEOPP, /SDF/IF_S4RC20 , /SDF/BPM_7X_S4RC20_GET_DATA ,/SDF/BPM_7X_S4RC20_GET_KPIS, , KBA , SV-SMG-MON-BPM-ANA , Analytics , Known Error