What is this error in my build?.

[saintlol63]

@anonymous_user_d22b3d8f

UATHelper: Packaging (Windows): LogInit: Display: LogBlueprint: Error: [AssetLog] D:\Unreal Projects\MiniJuego\Content\FirstPerson\Blueprints\BP_Rifle.uasset: [Compiler] La propiedad asociada con First Person Mesh no se ha encontrado from Source: /Game/FirstPerson/Blueprints/BP_Rifle.BP_Rifle

compil failed with this line