What steps can I take to use ML on Kafka and Spark Structured Streaming without encountering the Pyspark.sql.utils.AnalysisException error?

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Ensure that the schema of the data being read from Kafka matches the schema of the dataframe being used for machine learning. If there are any inconsistencies between them, it could cause the error.

Check if the Kafka topic has any duplicate records, which could also cause the error. Try to remove the duplicates from the stream before processing data.

Ensure that the serialization and deserialization formats used for Kafka and Spark are consistent. To check, validate the Kafka message format using a Kafka consumer, and compare it with the actual message format of Spark's structured streaming data.

Check the compatibility of the Spark and Kafka versions being used; ensure that they are compatible.

Inspect the logs and error messages generated when the error occurs, as they may provide additional information about the underlying cause of the error. Use debugging tools to understand the root cause of the error and fix the issue.

Finally, try to redesign the application and move away from using Kafka for streaming data processing. Instead, you can use other streaming platforms like Apache Flink or Apache SAMOA for machine learning purposes.