Solution : https://service.sap.com/sap/support/notes/1576769 (SAP Service marketplace login required)
Key words :
web dynpro runtime, return code 404, prerequisites due, program error, solution apply, support package 3, webresource fails, webresource, wdwebresource, getpubliccachedwebresource
Related Notes :
1501448 | Download Web Dynpro SCAs in NetWeaver 7.3 |