Problem with Web.Page not found in Custom Data Connector

Hi,

I'm trying to follow some examples that I found about parsing the content of a web page into a custom connector, but it is giving me an error : "The name 'Web.Page' doesn't exist in the current context".

This is my code:

// This file contains your Data Connector logic
section TestList;

[DataSource.Kind="TestList", Publish="TestList.Publish"]
shared TestList.Contents = () =>
  let

    executeReport = () => 
    let
        urlReport = "localhost:8080/jsontest/",
        sourceReport = Web.Page(Web.Contents(urlReport,[ Headers =[ #"Accept" = "application/html"]]))
    in
        sourceReport
    in executeReport;

I'm using Visual Studio 2015, and the last version of the Power Query SDK (1.0.0.13),

Any idea of why I'm getting this error?

Regards