Hello @Vikram Mahawal​ 

Thank you for posting to the Databricks community.

The error is documented here

https://github.com/microsoft/SynapseML/issues/1296

It seems like it cannot find the jar files to load the classes

Can you try installing the below maven library on the cluster and retry?

com.microsoft.azure:synapseml_2.12:0.9.5