Compiling game fails

LogInit: Display: LogOutputDevice: Error: Ensure condition failed: Lhs.Array.Num() == Lhs.InitialNum [File:D:\Build++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\Core\Public\Containers/SparseArray.h] [Line: 781]

I get this error every time. I even took out my maps and kept one map in and it still fails when trying to package. I cannot narrow down this issue at all. But this no matter what shows when I try to package the game. Really driving me nuts anyone have any ideas??

I’ve got the same problem occurring in my game when i attempt to package or launch my project with “by the books” data build configuration.

the next line that shows in my cook.txt file is:

“Container has changed during ranged-for iteration!”

then proceeds to print out the stack trace. Glad to see I’m not the only one having these issues, buts its frustrating as hell…