LogStreaming: Error: Couldn't find file for package

Hello everyone ! Use StreamableManager load texture and materials work well in editor, Now i packaging success, but run the pakege file get "fatal error! ". The following is the log……

[2018.06.05-03.08.45:928][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo01
requested by async loading code. NameToLoad: /Game/Textures/Main/Logo01

[2018.06.05-03.08.45:928][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:928][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo02 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo02

[2018.06.05-03.08.45:928][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo03 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo03

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo04 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo04

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo05 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo05

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo06 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo06

[2018.06.05-03.08.45:929][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo07 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo07

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo08 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo08

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo09 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo09

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Textures/Main/Logo10 requested by async loading code. NameToLoad: /Game/Textures/Main/Logo10

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Couldn’t find file for package /Game/Materials/Main/Button requested by async loading code. NameToLoad: /Game/Materials/Main/Button

[2018.06.05-03.08.45:930][ 0]LogStreaming: Error: Found 0 dependent packages…

[2018.06.05-03.08.45:931][ 0]LogStreamableManager: Failed attempt to load /Game/Materials/Main/Button.Button
[2018.06.05-03.08.45:931][ 0]LogStreamableManager: Failed attempt to load /Game/Textures/Main/Logo01.Logo01

My code:

 //.............................. Call ............................
UTexture* tex =Cast(LoadObject("UTexture'/Game/Textures/Main/Logo01.Logo01'"));
UMaterial*mat=Cast(LoadObject("UMaterial'/Game/Materials/Main/Button.Button'"));
//…….............................................................

//...............................Function........................
 UObject* AMainMenu::LoadObject(FString APath)
 {
        FStreamableManager* stream = new FStreamableManager;
	FStringAssetReference ref(APath);
	UObject* Asset =stream->SynchronousLoad(ref);
	return Asset;

 }

Please give me some help, thanks very much!!!

Same problem here, would really love a solution !

Any solution to this?

I created a project based on the Template Games/Third person. It Package correctly but if I add the Media Framework Utilities plugin and try to package it the following error appears.: LogLinker: Warning: [AssetLog] D:\Program Files\UE_5.1\Engine\Content\BasicShapes\Cube.uasset: Failed to load ‘/Game/MyTextures/T_CobbleStone_Rough_D_Mat’: Can’t find file.
and
LogLinker: Warning: [AssetLog] D:\Program Files\UE_5.1\Engine\Content\BasicShapes\Cube.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/MyTextures/T_CobbleStone_Rough_D_Mat’

Ihave no added any object to the project.