     try
       outputValue = evaluationContext.evaluateExpression(src)
     catch error
-      throw new Error("Error evaluating the output parameter value expression '#{src}' for send node: #{error}")
+      throw new Error("Error evaluating the output parameter value expression '#{src}' for send node:\n#{error.stack}")
 
     [parent, key] = GE.getParentAndKey(evaluationContext, dest.split("."))
     parent[key] = outputValue

    try
      evaluatedParams[paramName] = evaluationContext.evaluateExpression(paramValue)
    catch error
      throw new Error("Error evaluating the input parameter expression '#{paramValue}' for node '#{node.action}': #{error}")

  locals = 
    params: evaluatedParams

          # If the where clause evaluates to false, don't add it
          if evaluationContext.evaluateExpression(node.foreach.where) then bindingSet.push(newBindings)
        catch error
          throw new Error("Error evaluating the where expression '#{node.foreach.where}' for foreach node '#{node}':\n#{error.stack}")
      else
        bindingSet.push(newBindings)
  else if _.isString(node.foreach.from)
