Android Packaging Error: Ensure condition failed: ShouldSerializeWidgetTree(TargetPlatform) == false

Development Platform & Builds Mobile
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1

I am trying to package a android project. It was packing fine for the last 20 times i did an apk build. But now I am receiving an error every-time i try to package.

Steps iv’e taken:
I have reinstalled 4.18, I have verified files for the 4.18 install. I fixed up redirectors in the content folder. Not sure what else to do. Attached is the full output log.

error log

Errors:
 Warning/Error Summary (Unique only)
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: -----------------------------------
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: begin: stack for UAT
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: === Handled ensure: ===
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error:
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: Ensure condition failed: ShouldSerializeWidgetTree(TargetPlatform) == false [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\UMG\Private\UserWidget.cpp] [Line: 1721]
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: Stack:
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005F502786 UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005F2A123A UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005F2BB906 UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005DBFC2C2 UE4Editor-UMG.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005EDE1077 UE4Editor-CoreUObject.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000005EDCA5F6 UE4Editor-CoreUObject.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004CA0EB8D UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004C8D112E UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004C8D2473 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004C8DE3B7 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004C777D61 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000004C79F391 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00000000AD5ED25F UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00000000AD5E525A UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00000000AD5E54AA UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00000000AD5F2379 UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00000000AD5F3193 UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000008ACF8102 KERNEL32.DLL!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: [Callstack] 0x000000008AF3C5B4 ntdll.dll!UnknownFunction []
UATHelper: Packaging (Android (ETC2)):   LogInit: Display: LogOutputDevice: Error: end: stack for UAT
2

The answer is to make sure your contents folder in the content browser contains the exact same files as in File Explorer. I found my answer here.