lets make this clear…I faced the same problem and And i fixed it just like that
considering you starting building the UE4 source code
follow this steps along and it should fix your problem:
- Open UE4 source code file UE4.sln using Visual studio 2013.
- be sure that the mode is “Developer editor” first.
- right click on UE4 under engine folder in solution explorer and click rebuild "this will clean any solution before building.
- open the UE4 after building and open you saving project .
- go to visual studio 2013 and change the mode to development" and then go to UE4 and right click and choose “build” not rebuild…this will compile certain data only not all UE4 I guess.
- go back to UE4 and package ur project.
voila it should works perfect.
keep in mind u should do this once…any time you need to package your game, you don’t need to do the same steps again…just go straight and package them directly .
please, just confirm that works for u or not bec. this fixed my issue
best of luck