# Packaging error with UObjectGlobals \[Line : 281\]

**URL:** <https://forums.unrealengine.com/t/packaging-error-with-uobjectglobals-line-281/445127>\
**Category:** Platform & Builds\
**Tags:** garbage-collection, unreal-engine, package-error, question\
**Created:** [March 12, 2019, 12:20pm UTC](https://forums.unrealengine.com/t/packaging-error-with-uobjectglobals-line-281/445127 "2019-03-12T12:20:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aroiestudio](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@aroiestudio](https://forums.unrealengine.com/u/aroiestudio)\
**Post date:** [March 12, 2019, 12:20pm UTC](https://forums.unrealengine.com/t/packaging-error-with-uobjectglobals-line-281/445127/1 "2019-03-12T12:20:29Z")

</div>

Hi,  
I try packaging the project, but It still same error like this.

UATHelper: Packaging (Windows (64-bit)): LogCook: Display: Cooked packages 1300 Packages Remain 3581 Total 4881  
UATHelper: Packaging (Windows (64-bit)): LogMaterial: Display: Missing cached shader map for material M\_Widget, compiling.  
UATHelper: Packaging (Windows (64-bit)): LogOutputDevice: Warning:  
UATHelper: Packaging (Windows (64-bit)):  
UATHelper: Packaging (Windows (64-bit)): Script Stack (0 frames):  
UATHelper: Packaging (Windows (64-bit)):  
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: begin: stack for UAT  
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: === Critical error: ===  
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:  
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: Fatal error: [File:D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp] [Line: 281]  
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: Illegal call to StaticFindObjectFast() while serializing object data or garbage collecting!

What wrong I do?