问JQuery DataTable没有在流星上工作

EN

Uncaught TypeError: Cannot set property 'pagesData' of undefined underscore.js:848
Error: Exception from Tracker recompute function:
Error: Can't call non-function: undefined
    at Spacebars.call (http://localhost:3000/packages/spacebars.js?cb20740019f26bdca2faa89ba9c973f618118521:172:13)
    at Spacebars.mustacheImpl (http://localhost:3000/packages/spacebars.js?cb20740019f26bdca2faa89ba9c973f618118521:106:25)
    at Object.Spacebars.mustache (http://localhost:3000/packages/spacebars.js?cb20740019f26bdca2faa89ba9c973f618118521:110:39)
    at null._render (http://localhost:3000/packages/jquery-datatables.js?bf10e73db3f8b2f4afdc77c33ba3c62092556ae7:1010:22)
    at doRender (http://localhost:3000/packages/blaze.js?7b7ff7ee2ccdccd85a1ad0d8dc9d96193e29e8b0:1853:25)
    at http://localhost:3000/packages/blaze.js?7b7ff7ee2ccdccd85a1ad0d8dc9d96193e29e8b0:1795:16
    at Object.Blaze._withCurrentView (http://localhost:3000/packages/blaze.js?7b7ff7ee2ccdccd85a1ad0d8dc9d96193e29e8b0:2029:12)
    at viewAutorun (http://localhost:3000/packages/blaze.js?7b7ff7ee2ccdccd85a1ad0d8dc9d96193e29e8b0:1794:18)
    at Tracker.Computation._compute (http://localhost:3000/packages/tracker.js?192a05cc46b867dadbe8bf90dd961f6f8fd1574f:288:36)
    at new Tracker.Computation (http://localhost:3000/packages/tracker.js?192a05cc46b867dadbe8bf90dd961f6f8fd1574f:206:10)

<template name="projectslist">
  <div class="projectslist">

    <div>
        {{> DataTable dtProjects }}
    </div>

  </div>
</template>

Template.projectslist.dtProjects =  function() {    
  return {
    id: "my-unique-table-id",
    columns: [
      {
        title: "Name",
        data: "name"
      }, {
        title: "Description",
        data: "description"
      }, {
        title: "Delivery Date",
        data: "deliverydate"
      }
    ],
    subscription: "dtProjects",
    query: {
      grade: "A"
    }
  };
};

var ProjectsTable;
  ProjectsTable = new DataTableComponent({
    subscription: "dtProjects",
    collection: Projects
  });
  ProjectsTable.publish();

Projects = new Mongo.Collection('projects');