When setting up a SalesForce query to Accounts or Contacts, receiving an error that says “Error parsing Sql query : Failed to parse query string : Could not find sObject Contact : INVALID_TYPE : sObject type ‘Contac’ is not supported. If you are attempting to use a custom object, be sure to append the ‘__c’ after the entity name.  Please reference your WSDL or the describe call for the appropriate names.  

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You will get this error if you setup your SmartConnect SalesForce connector to use a version of the SalesForce API greater than 28.  When you setup your SalesForce connector in SmartConnect and activate the connector,  the SalesForce Service Url will default to http://login.salesforce.com/services/Soap/u/28.0   This is the version of the API that SmartConnect is using.  

If you change the API version to something greater than 28, the Account and Contact entities will not function as data sources or destinations.