Solution : https://service.sap.com/sap/support/notes/1249184 (SAP Service marketplace login required)
Key words :
support packages sapkb64021, support package sapkb64023, lower support packages, relevant support package, support packages mentioned, correct syntax errors, support packages listed, syntax error immediately, syntax error occurs, class cl_gui_alv_grid contained
Related Notes :
| 822379 | Known problems with Support Packages in SAP NW 7.0x AS ABAP |
| 672651 | OCS: Known problems with Support Packages in Basis Rel.6.40 |