Anyone run into this one yet?: ``` java.lang.NoSuc...

# serialization

[rnentjes]

Anyone run into this one yet?:

java.lang.NoSuchMethodError: kotlinx.serialization.internal.AbstractPolymorphicSerializer.findPolymorphicSerializerOrNull(Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)Lkotlinx/serialization/SerializationStrategy;
	at kotlinx.serialization.PolymorphicSerializerKt.findPolymorphicSerializer(PolymorphicSerializer.kt:96)
	at kotlinx.serialization.json.internal.PolymorphicKt.findActualSerializer(Polymorphic.kt:29)
	at kotlinx.serialization.json.internal.PolymorphicKt.access$findActualSerializer(Polymorphic.kt:1)
	at kotlinx.serialization.json.internal.StreamingJsonEncoder.encodeSerializableValue(StreamingJsonEncoder.kt:226)
	at kotlinx.serialization.encoding.AbstractEncoder.encodeSerializableElement(AbstractEncoder.kt:81)
	at kotlinx.serialization.internal.MapLikeSerializer.serialize(CollectionSerializers.kt:123)
	at kotlinx.serialization.json.internal.StreamingJsonEncoder.encodeSerializableValue(StreamingJsonEncoder.kt:223)
	at kotlinx.serialization.encoding.AbstractEncoder.encodeSerializableElement(AbstractEncoder.kt:81)

This is KMM with serialization plugin 1.4.10 and dependency 'kotlinx-serialization-json:1.0.0' in common. The error happens on the jvm with a sealed class.

[sandwwraith]

maybe you have old version (1.0.0-RC or 0.20.0) included somewhere in the classpath

[rnentjes]

Thx, you are right, there was another version included through a ktor dependency.