# "Accessed None to read property SplineRef"

**URL:** <https://forums.unrealengine.com/t/accessed-none-to-read-property-splineref/1553835>\
**Category:** International\
**Tags:** error, unreal-engine, Landscape, runtime, Blueprint\
**Created:** [December 25, 2023, 10:24am UTC](https://forums.unrealengine.com/t/accessed-none-to-read-property-splineref/1553835 "2023-12-25T10:24:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Leo\_kill7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Leo\_kill7](https://forums.unrealengine.com/u/Leo_kill7)\
**Post date:** [December 25, 2023, 10:24am UTC](https://forums.unrealengine.com/t/accessed-none-to-read-property-splineref/1553835/1 "2023-12-25T10:24:11Z")

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Hi,  
I get this error:  
“Blueprint Runtime Error: “Accessed None trying to read property SplineRef”. Node: Set Total Spine Length Graph: Setup Spline Mesh Components Function: Setup Spline Mesh Components Blueprint: SplineMeshChild”  
when loading into a new Level at runtime. I guess theres something wrong with my landscape because the file is in the Directory Engine/Landmass/Landscape/BlueprintBrushes. I dont understand why SplineRef is none in this case. Do you have any Idea what could fix it?

 ![UE5](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/b/1/5b1f0118b41066636b2b0bc27d6b123d5360c29f.png)

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**Author:** ![youngdeveleopersclub](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/youngdeveleopersclub/32/1032984_2.png) [@youngdeveleopersclub](https://forums.unrealengine.com/u/youngdeveleopersclub)\
**Post date:** [February 25, 2025, 11:13pm UTC](https://forums.unrealengine.com/t/accessed-none-to-read-property-splineref/1553835/3 "2025-02-25T23:13:04Z")

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Before using a Spline, check if it exists. To do this, you can use **Is Valid** —make sure to use **Macros** specifically.

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<div class="post-metadata">

**Author:** ![Stolcjan](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/stolcjan/32/1213449_2.png) [@Stolcjan](https://forums.unrealengine.com/u/Stolcjan)\
**Post date:** [September 13, 2026, 9:53am UTC](https://forums.unrealengine.com/t/accessed-none-to-read-property-splineref/1553835/4 "2026-09-13T09:53:10Z")

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Same issue here. I think valdiation solve the problem. Do you have any other idea or are you solved the problem?