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Unable to package my game. Alot of engine things are broken ?

Hi! I recently upgraded my sourcebuild version of ue4 from 4.20 to 4.21. I updated my project and tried to package it. Error. In the packaging log a ton of stuff seems to be broken. Engine level stuff. I tried to build the engine from source again to see if i might put a weird character in a file or something. Nothing. The compile completes without a problem. My game compiles fine too. I can play it no problem. But each time i package i get a ton of errors that some engine level stuff is not compiling correctly.

Here are some problems the output log gives me:

C:\Unreal\UnrealEngine\Engine\Source\Developer\MeshBoneReduction\Private\MeshBoneReduction.cpp(138): error C2027: use of undefined type 'FSkelMeshSection'

C:\Unreal\UnrealEngine\Engine\Source\Developer\MeshBoneReduction\Public\MeshBoneReduction.h(10): note: see declaration of 'FSkelMeshSection'

C:\Unreal\UnrealEngine\Engine\Source\Developer\MeshBoneReduction\Private\MeshBoneReduction.cpp(246): error C2065: 'Vert': undeclared identifier

C:\Unreal\UnrealEngine\Engine\Source\Developer\MeshBoneReduction\Private\MeshBoneReduction.cpp(414): error C2143: syntax error: missing ';' before ':'

And many more. I checked all of those files and everything is fine. Keep in mind that if i build the engine using visual studio 2017 everything is working correctly. I attached the packaging log below!

link text

Product Version: UE 4.21
new-3.txt (410.0 kB)
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asked Jan 04 '19 at 05:53 PM in Packaging & Deployment

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