SerializationException

[rtc11]

I get this exception when trying to manually test with Postman.

	at kotlinx.serialization.PlatformUtilsKt.serializer(PlatformUtils.kt:21)
	at kotlinx.serialization.SerializerResolvingKt$serializer$1.invoke(SerializerResolving.kt:57)
	at kotlinx.serialization.SerializerResolvingKt.serializer(SerializerResolving.kt:85)
	at io.ktor.serialization.SerializerLookupKt.serializerByTypeInfo(SerializerLookup.kt:23)
	at io.ktor.serialization.SerializationConverter.convertForReceive(SerializationConverter.kt:134)
	at io.ktor.features.ContentNegotiation$Feature$install$3.invokeSuspend(ContentNegotiation.kt:169)
	at io.ktor.features.ContentNegotiation$Feature$install$3.invoke(ContentNegotiation.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
	at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
	at io.ktor.request.ApplicationReceiveFunctionsKt.receive(ApplicationReceiveFunctions.kt:110)
	at com.jetbrains.handson.httpapi.routes.CustomerRoutesKt$customerRouting$1$3.invokeSuspend(CustomerRoutes.kt:58)
	at com.jetbrains.handson.httpapi.routes.CustomerRoutesKt$customerRouting$1$3.invoke(CustomerRoutes.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
	at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
	at io.ktor.routing.Routing.executeResult(Routing.kt:147)
	at io.ktor.routing.Routing.interceptor(Routing.kt:34)
	at io.ktor.routing.Routing$Feature$install$1.invokeSuspend(Routing.kt:99)
	at io.ktor.routing.Routing$Feature$install$1.invoke(Routing.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
	at io.ktor.features.ContentNegotiation$Feature$install$1.invokeSuspend(ContentNegotiation.kt:107)
	at io.ktor.features.ContentNegotiation$Feature$install$1.invoke(ContentNegotiation.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
	at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$2.invokeSuspend(DefaultEnginePipeline.kt:120)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$2.invoke(DefaultEnginePipeline.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(PipelineContext.kt:318)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(PipelineContext.kt:163)
	at io.ktor.util.pipeline.SuspendFunctionGun.execute(PipelineContext.kt:183)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:27)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invokeSuspend(NettyApplicationCallHandler.kt:40)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:55)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:111)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:158)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:54)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at io.ktor.server.netty.NettyApplicationCallHandler.handleRequest(NettyApplicationCallHandler.kt:30)
	at io.ktor.server.netty.NettyApplicationCallHandler.channelRead(NettyApplicationCallHandler.kt:24)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
	at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:59)
	at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:368)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:830)

[AbGhost-cyber]

did you manage to solve, i know its been a long time