Solution : https://service.sap.com/sap/support/notes/1160488 (SAP Service marketplace login required)
Key words :
tools -> options -> compiler -> default runtime, starting modeling portal content, symptom portal runtime provider, portal runtime provider reason, portal runtime provider, terms portal modeling, runtime provider list, default runtime, portal runtime, visual composer
Related Notes :
| 1253774 | SAP NetWeaver CE Portal Platform NW7.1, SP5/SR5 |
| 1174044 | SAP NetWeaver CE Portal Platform NW7.1 EhP1 SP1 Known Issues |