Receiving error on final step of TCC "The specified custom step class has not been found."

Summary

Receiving error on final step of TCC "The specified custom step class has not been found."

Content

Dear Experts,

I am trying to extract onboarding documents using TCC and to achieve this I had first downloaded the Jar Files and extracted the same  into the \extensions\exernaljars\ folder under your TCC installation. However when running TCC on the final step I am getting an error "The specified custom step class has not been found"

Please advise how this issue can be resolved. I have attached the screenshot of post processing custom step.

Thanks and Regards,

Rahul Thomas