# Register a complex AVRO schema **URL:** https://forum.confluent.io/t/register-a-complex-avro-schema/7749 **Category:** Schema Registry **Created:** [2 May 2023 10:17 UTC](https://forum.confluent.io/t/register-a-complex-avro-schema/7749 "2023-05-02T10:17:15Z") **Posts on this page:** 1 **Page:** 1
### Author: ![talgat-aitchanov-kn](https://avatars.discourse-cdn.com/v4/letter/t/43a26b/32.png) [@talgat-aitchanov-kn](https://forum.confluent.io/u/talgat-aitchanov-kn) #### Post date: [2 May 2023 10:17 UTC](https://forum.confluent.io/t/register-a-complex-avro-schema/7749/1 "2023-05-02T10:17:15Z")
Hi team, Could you help me out to register reference based AVRO schema into schema registry? I am using next gradle plugin with its configuration > **build.gradle** > > ```auto > ... > id 'com.github.davidmc24.gradle.plugin.avro' version '1.7.0' > id 'com.github.imflog.kafka-schema-registry-gradle-plugin' version '1.9.1' > ... > ... > > schemaRegistry { > url = 'http://localhost:8081/' > quiet = false > outputDirectory = 'schemas/avro/results/' > register { > subject('customer', 'src/main/avro/Customer.avsc', 'AVRO') > .addReference('person', 'person', 1) > subject('person', 'src/main/avro/Person.avsc', 'AVRO') > } > } > ... > > ``` Docker image: **landoop/fast-data-dev:cp3.3.0** (the same thing occurs with **lensesio/fast-data-dev:2.3.0** ) My schemas are: > **Person.avsc** > > ```auto > { > "type": "record", > "name": "Person", > "namespace": "com.example", > "fields": [ > { > "name": "id", > "type": "int" > }, > { > "name": "name", > "type": "string" > } > ] > } > > ``` and > **Customer.avsc** > > ```auto > { > "namespace": "com.example", > "type": "record", > "name": "Customer", > "fields": [ > { > "name": "id", > "type": "int" > }, > { > "name": "name", > "type": "string" > }, > { > "name": "address", > "type": { > "type": "record", > "name": "Address", > "fields": [ > { > "name": "street", > "type": "string" > }, > { > "name": "city", > "type": "string" > }, > { > "name": "state", > "type": "string" > }, > { > "name": "zip", > "type": "int" > } > ] > } > }, > { > "name": "person", > "type": "com.example.Person" > } > ], > "imports": [ > "Person.avsc" > ] > } > > ``` when I generate Java objects everything goes well, however when I execute `registerSchemasTask` it fails with > **Gradle console output** > > ```auto > 2023-05-02T12:51:29.859+0300 [ERROR] [com.github.imflog.schema.registry.tasks.register.RegisterTaskAction] Could not register schema for 'customer' > io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Unrecognized field: references; error code: 422 > at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:314) > at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:384) > at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:561) > at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:549) > at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.registerAndGetId(CachedSchemaRegistryClient.java:290) > at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:397) > at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:376) > at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:364) > at com.github.imflog.schema.registry.tasks.register.RegisterTaskAction.registerSchema(RegisterTaskAction.kt:51) > at com.github.imflog.schema.registry.tasks.register.RegisterTaskAction.run(RegisterTaskAction.kt:30) > at com.github.imflog.schema.registry.tasks.register.RegisterSchemasTask.registerSchemas(RegisterSchemasTask.kt:49) > at jdk.internal.reflect.GeneratedMethodAccessor365.invoke(Unknown Source) > at java.base@12.0.2/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.base@12.0.2/java.lang.reflect.Method.invoke(Method.java:567) > at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:125) > at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58) > at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51) > at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29) > at org.gradle.api.internal.tasks.execution.TaskExecution$3.run(TaskExecution.java:236) > at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29) > at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47) > at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68) > at org.gradle.api.internal.tasks.execution.TaskExecution.executeAction(TaskExecution.java:221) > at org.gradle.api.internal.tasks.execution.TaskExecution.executeActions(TaskExecution.java:204) > at org.gradle.api.internal.tasks.execution.TaskExecution.executeWithPreviousOutputFiles(TaskExecution.java:187) > at org.gradle.api.internal.tasks.execution.TaskExecution.execute(TaskExecution.java:165) > at org.gradle.internal.execution.steps.ExecuteStep.executeInternal(ExecuteStep.java:89) > at org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:40) > at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:53) > at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:50) > at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204) > at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53) > at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73) > at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:50) > at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:40) > at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:68) > at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:38) > at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:41) > at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:74) > at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:55) > at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51) > at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:29) > at org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.executeDelegateBroadcastingChanges(CaptureStateAfterExecutionStep.java:124) > at org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:80) > at org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:58) > at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48) > at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:36) > at org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:181) > at org.gradle.internal.execution.steps.BuildCacheStep.lambda$execute$1(BuildCacheStep.java:71) > at org.gradle.internal.Either$Right.fold(Either.java:175) > at org.gradle.internal.execution.caching.CachingState.fold(CachingState.java:59) > at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:69) > at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:47) > at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:36) > at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:25) > at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:36) > at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:22) > at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:110) > at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$2(SkipUpToDateStep.java:56) > at java.base@12.0.2/java.util.Optional.orElseGet(Optional.java:369) > at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:56) > at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38) > at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:73) > at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:44) > at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37) > at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27) > at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:89) > at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:50) > at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:102) > at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:57) > at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:76) > at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:50) > at org.gradle.internal.execution.steps.SkipEmptyWorkStep.executeWithNoEmptySources(SkipEmptyWorkStep.java:254) > at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:91) > at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:56) > at org.gradle.internal.execution.steps.RemoveUntrackedExecutionStateStep.execute(RemoveUntrackedExecutionStateStep.java:32) > at org.gradle.internal.execution.steps.RemoveUntrackedExecutionStateStep.execute(RemoveUntrackedExecutionStateStep.java:21) > at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38) > at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:43) > at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:31) > at org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:40) > at org.gradle.api.internal.tasks.execution.TaskExecution$4.withWorkspace(TaskExecution.java:281) > at org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:40) > at org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:30) > at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:37) > at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:27) > at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:44) > at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:33) > at org.gradle.internal.execution.impl.DefaultExecutionEngine$1.execute(DefaultExecutionEngine.java:76) > at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:139) > at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:128) > at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:77) > at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46) > at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51) > at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57) > at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:57) > at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36) > at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77) > at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55) > at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52) > at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204) > at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66) > at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157) > at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59) > at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53) > at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73) > at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52) > at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:69) > at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:322) > at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:309) > at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:302) > at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:288) > at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:462) > at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:379) > at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64) > at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:49) > at java.base@12.0.2/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) > at java.base@12.0.2/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) > at java.base@12.0.2/java.lang.Thread.run(Thread.java:835) > 2023-05-02T12:51:29.890+0300 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] > 2023-05-02T12:51:29.890+0300 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception. > > ``` > **Gragle degub output** > > ```auto > ... > 2023-05-02T12:51:29.849+0300 [INFO] [com.github.imflog.schema.registry.tasks.register.RegisterTaskAction] Registering customer (from src/main/avro/Customer.avsc) > 2023-05-02T12:51:29.851+0300 [DEBUG] [io.confluent.kafka.schemaregistry.client.rest.RestService] Sending POST with input {"references":[{"name":"person","subject":"person","version":1}],"schema":"{\"type\":\"record\",\"name\":\"Customer\",\"namespace\":\"com.example\",\"fields\":[{\"name\":\"id\",\"type\":\"int\"},{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"address\",\"type\":{\"type\":\"record\",\"name\":\"Address\",\"fields\":[{\"name\":\"street\",\"type\":\"string\"},{\"name\":\"city\",\"type\":\"string\"},{\"name\":\"state\",\"type\":\"string\"},{\"name\":\"zip\",\"type\":\"int\"}]}},{\"name\":\"person\",\"type\":\"Person\"}],\"imports\":[\"Person.avsc\"]}"} to http://localhost:8081/subjects/customer/versions?normalize=false > ... > > ```