Solution : https://service.sap.com/sap/support/notes/1393526 (SAP Service marketplace login required)
Key words :
cl_gui_cfw====================cp update_viewlock reason, runtime error raise_exception, edit report template, changed report template, symbol tree switch, attached correction instructions, report template, symbol tree, prerequisites reason, correction instructions
Related Notes :
| 1468126 | Multiple value assignment: Symbols with "space" as separator |
| 1303277 | Error messages when copying report templates |
| 1282280 | Incorrect sequence of symbols in the symbol tree |