Databricks Community

'Illegal group reference'The complete error is :eventmessage: {"message":"COSMOS Publish Start","instrumentationkey":"[REDACTED]","type":"Event","properties":{"ServiceOffering":"Commercial Sales and Marketing","ServiceLine":"Recommendations","Service...

NoClassDefFoundError: org/apache/spark/sql/SparkSession$    at com.microsoft.nebula.common.ConfigProvider.<init>(configProvider.scala:17)    at $linef37a348949c145718a08f6b29642317b35.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$...

NoClassDefFoundError: scala/Product Caused by: ClassNotFoundException: scala.Productat preimport step itself . Please suggest me something .