Project Error on Startup after last save

[Mangopork]

Hi,
I build a map under a new project in unreal4, now anytime I launch it gives me an error.


Any ideas?

Tried editing INI but no dice. 4.5 version of engine.

[fighter5347]

You get the same error after you changed the name in the .ini?
As a temporary solution you could just create a new project + copy all the needed files into the new folder

[Mangopork]

It does this arbitrarily. Sometimes it works sometimes it doesn't. This time no INI changes whatsoever. The project worked literally yesterday, now after an unreal launcher update it will not.