Hi I use Angular cli, as soon as I add it in app.Module.ts and try to build, I get an error. would you please have look to the attached link. <a href="http://www.imageno.com/7wmahyfo88hopic.html" target="_blank"><img src="http://www.imageno.com/thumbs/20161114/7wmahyfo88ho.jpg" border="0" alt=""></a> thanks