Solution : https://service.sap.com/sap/support/notes/551845 (SAP Service marketplace login required)
Key words : 
activation errors occur, dictionary source tables, relevant support package, table type reason, referenced data type &, referenced data type, relevant activation error, activation error, reference type, relevant items
Related Notes : 
       
| 522711 | Corrections for upgrade to Basis 620 | 
| 409671 | Transport/Upgrade:Types with ref. to new classes/interfaces |