连接到现有的Kafka代理时，ksqlDB服务器无法启动

我在<myurl>：9092有一个现有的kafka经纪人。该代理正在运行Apache Kafka版本2.2.0。我想使用ksqlDB对来自该kafka代理中主题的数据进行一些流处理。因此，根据https://docs.confluent.io/platform/current/installation/versions-interoperability.html上的兼容性表，我使用的是Confluent Platform 5.2版的ksqlDB 。

我bootstrap.servers=<myurl>:9092进去了ksql/ksql-server.properties。

但是，当我尝试通过运行启动ksql-server时ksql-server-start etc/ksql/ksql-server.properties，出现以下错误：

ERROR Failed to start KSQL (io.confluent.ksql.rest.server.KsqlServerMain:53)
org.apache.kafka.common.errors.SerializationException: Error deserializing key/value for partition _confluent-ksql-default__command_topic-0 at offset 0. If needed, please seek past the record to continue consumption.
Caused by: org.apache.kafka.common.errors.SerializationException: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `io.confluent.ksql.rest.server.computation.Command`, problem: `java.lang.NullPointerException`
 at [Source: (byte[])"("statement":"CREATE STREAM KSQL_PROCESSING_LOG (logger VARCHAR, level VARCHAR, time BIGINT, message STRUCT<type INT, deserializationError STRUCT<errorMessage VARCHAR, recordB64 VARCHAR, cause ARRAY<VARCHAR>, `topic` VARCHAR>, recordProcessingError STRUCT<errorMessage VARCHAR, record VARCHAR, cause ARRAY<VARCHAR>>, productionError STRUCT<errorMessage VARCHAR>>) WITH(KAFKA_TOPIC='default_ksql_processing_log', VALUE_FORMAT='JSON');","originalProperties":{"ksql.extension.dir":"ext","ksql.streams.ca"[truncated 3011 bytes]; line: 1, column: 3511]
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `io.confluent.ksql.rest.server.computation.Command`, problem: `java.lang.NullPointerException`
 at [Source: (byte[])"("statement":"CREATE STREAM KSQL_PROCESSING_LOG (logger VARCHAR, level VARCHAR, time BIGINT, message STRUCT<type INT, deserializationError STRUCT<errorMessage VARCHAR, recordB64 VARCHAR, cause ARRAY<VARCHAR>, `topic` VARCHAR>, recordProcessingError STRUCT<errorMessage VARCHAR, record VARCHAR, cause ARRAY<VARCHAR>>, productionError STRUCT<errorMessage VARCHAR>>) WITH(KAFKA_TOPIC='default_ksql_processing_log', VALUE_FORMAT='JSON');","originalProperties":{"ksql.extension.dir":"ext","ksql.streams.ca"[truncated 3011 bytes]; line: 1, column: 3511]
...

如果我使用本地代理并设置bootstrap.servers=localhost:9092，则ksql-server可以正常启动。

我如何解决此空记录/反序列化问题，以便将ksqldb服务器连接到现有的kafka代理？