Error While using the Connector

I am getting the following error while deploying my project for my ServiceTask which is configured to use the “http-connector”. The Camunda Modeller supports in the drop down Connector but when we deploy the Engine looks only for ‘class’, ‘delegateExpression’, ‘type’, or ‘expression’

Error:
One of the attributes ‘class’, ‘delegateExpression’, ‘type’, or ‘expression’ is mandatory on serviceTask.

Any configurations I am missing?

@markivkc25 did you configure/included the dependencies mentioned in configure-camunda-connect docs?

In Service Task are you making any REST/SOAP request?

Did you register the ConnectProcessEnginePlugin to the process engine configuration?

<plugins>
   <plugin>
      <class>org.camunda.connect.plugin.impl.ConnectProcessEnginePlugin</class>
   </plugin>
</plugins>

Thanks I was able to resolve this after adding missing core jar files for plugin.