SerializationException: Unable to load layer type on iOS

AI & Machine Learning AI Inference Engine
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1

Hi, what could be causing the following exception, when running an app with Sentis on iOS? The same app runs fine on MacOS.

SerializationException: Unable to load type Unity.Sentis.Layers.Resize required for deserialization.
  at System.Runtime.Serialization.ObjectManager.DoFixups () [0x00000] in <00000000000000000000000000000000>:0
  at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize (System.Runtime.Remoting.Messaging.HeaderHandler handler, System.Runtime.Serialization.Formatters.Binary.__BinaryParser serParser, System.Boolean fCheck) [0x00000] in <00000000000000000000000000000000>:0
  at Unity.Sentis.ModelLoader.ReadObject[T] (System.IO.Stream stream) [0x00000] in <00000000000000000000000000000000>:0
  at Unity.Sentis.ModelLoader.LoadModelDesc (System.IO.Stream stream, Unity.Sentis.Model& model) [0x00000] in <00000000000000000000000000000000>:0
  at Unity.Sentis.ModelLoader.Load (Unity.Sentis.ModelAsset modelAsset) [0x00000] in <00000000000000000000000000000000>:0
2

We’ve seen it seems to be linked to code stripping.
We’re trying to fix it for a upcoming version

3

For a quick fix you can look at this thread. Or turn off code stripping in the settings.

4

Hi @roumenf

Create a xml file with name “link.xml” and keep it in “Assets/” …add below info in it and just build.

<?xml version="1.0" encoding="UTF-8" ?>
<linker>
	<!--Preserve types and members in an assembly-->
	<assembly fullname="Unity.Sentis" preserve="all"/>
	<assembly fullname="Unity.Sentis.ONNX" preserve="all"/>
</linker>
5

i got same problm of “unable to load layer”.

but i got another problem “B/BL out of range 135336536 from …” when i add

<assembly fullname=“Unity.Sentis” preserve="allassembly fullname=“Unity.Sentis.ONNX” preserve=“all”/>

to link.xml

anyhelp would be appreaciated!