why I get "exporter module no provider found" when i enable kafka exporter

[Dephi]

I follow the guidelines to enable kafka exporter,
https://skywalking.apache.org/docs/main/v9.4.0/en/setup/backend/exporter/
but i get the error:
2025-06-26 06:24:11,201 - org.apache.skywalking.oap.server.starter.OAPServerBootstrap -5293 [main] ERROR [] - exporter module no provider found.
org.apache.skywalking.oap.server.library.module.ProviderNotFoundException: exporter module no provider found.
at org.apache.skywalking.oap.server.library.module.ModuleDefine.prepare(ModuleDefine.java:86) ~[library-module-8.2.0.jar:8.2.0]
at org.apache.skywalking.oap.server.library.module.ModuleManager.init(ModuleManager.java:47) ~[library-module-8.2.0.jar:8.2.0]
at org.apache.skywalking.oap.server.starter.OAPServerBootstrap.start(OAPServerBootstrap.java:43) [server-bootstrap-8.2.0.jar:8.2.0]
at org.apache.skywalking.oap.server.starter.OAPServerStartUp.main(OAPServerStartUp.java:27) [server-starter-es7-8.2.0.jar:8.2.0]

what does it mean? do i miss anything? Skywalking runs in docker, image is apache/skywalking-oap-server , 8.2.0-es7

my appliaction.yml:
exporter:
selector: ${SW_EXPORTER:default}
grpc:
targetHost: ${SW_EXPORTER_GRPC_HOST:127.0.0.1}
targetPort: ${SW_EXPORTER_GRPC_PORT:9870}
default:
# Kafka exporter
enableKafkaTrace: ${SW_EXPORTER_ENABLE_KAFKA_TRACE:true}
kafkaBootstrapServers: ${SW_EXPORTER_KAFKA_SERVERS:localhost:9092}
# Kafka producer config, JSON format as Properties.
kafkaProducerConfig: ${SW_EXPORTER_KAFKA_PRODUCER_CONFIG:""}
kafkaTopicTrace: ${SW_EXPORTER_KAFKA_TOPIC_TRACE:skywalking-export-trace}
exportErrorStatusTraceOnly: ${SW_EXPORTER_KAFKA_TRACE_FILTER_ERROR:false}

[wu-sheng]

what does it mean? do i miss anything? Skywalking runs in docker, image is apache/skywalking-oap-server , 8.2.0-es7

You are using 8.2 with 9.4 doc? How does that work? Please fix your version. 8.x and 9.x are not supported by community anymore.

[Dephi]

beacuse I can't find doc about version 8.2.0 , so do you mean kafka exporter isnot supported in version 8.2.0?

[wu-sheng]

8.x is several years ago things. I can't remember it. If you want to find docs, you need to download source codes and check docs folder on your own.

https://github.com/apache/skywalking/tree/v8.2.0/docs

As I replied, community doesn't support those versions and docs are not being hosted on website anymore.