Solution : https://service.sap.com/sap/support/notes/1049088 (SAP Service marketplace login required)
Key words :
sapbwnews bw support package 21 netweaver'04 stack 21, sap bw releases 3, method if_rspc_transport=>get_tlogo, call transaction snote, additional support packages, wrong object type, 50 import support package 21, 0 import support package 14, attached correction instructions, sap note assistant
Related Notes :
986892 | SAPBWNews BW Support Package 21 NW'04 Stack 21 RIN |
914305 | SAPBINews NetWeaver 7.0 BI Support Package 11 |