My project works fine in PIE, but when I try to run the packaged game, I get this error:
Assertion failed: !Result || Result->LinkerLoad == Linker [File:D:\Epic Games\4.8\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp] [Line: 1054] [Line: 1054]
There are other reports about this as well on the AnswerHub: