fieldSchema for field key cannot be null. #9
Description
Got the jar from
https://mvnrepository.com/artifact/com.github.jcustenborder.kafka.connect/kafka-connect-transform-archive/0.1.0.3
But when running it in kafka connect I get:
at java.lang.Thread.run(Thread.java:748)\nCaused by: org.apache.kafka.connect.errors.SchemaBuilderException: fieldSchema for field key cannot be null.