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> Unreal Engine API Reference > Plugins > GoogleARCoreBase > UGoogleARCoreFrameFunctionLibrary > UGoogleARCoreFrameFunctionLibrary::GetTrackingFailureReason

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UGoogleARCoreFrameFunctionLibrary::GetTrackingFailureReason

Returns the reason when [UARBlueprintLibrary::GetTrackingQuality()](API\Runtime\AugmentedReality\UARBlueprintLibrary\GetTrackingQuality) returns NotTracking, or [UGoogleARCoreFrameFunctionLibrary::GetTrackingState](API\Plugins\GoogleARCoreBase\UGoogleARCoreFrameFunctionLibrar-\GetTrackingState) returns Paused.

Windows

MacOS

Linux

References

Module	GoogleARCoreBase
Header	/Engine/Plugins/Runtime/AR/Google/GoogleARCore/Source/GoogleARCoreBase/Public/GoogleARCoreFunctionLibrary.h
Include	#include "GoogleARCoreFunctionLibrary.h"
Source	/Engine/Plugins/Runtime/AR/Google/GoogleARCore/Source/GoogleARCoreBase/Private/GoogleARCoreFunctionLibrary.cpp

Syntax

[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="GoogleARCore|MotionTracking",
Meta=(Keywords="googlear arcore session"))
static EGoogleARCoreTrackingFailureReason GetTrackingFailureReason()

Remarks

Returns the reason when UARBlueprintLibrary::GetTrackingQuality() returns NotTracking, or UGoogleARCoreFrameFunctionLibrary::GetTrackingState returns Paused.

In scenarios when multiple causes result in tracking failures, this reports the most actionable failure reason.

Returns

A EGoogleARCoreTrackingFailureReason enum that describes the tracking failure reason.

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