Ionic2-calendar ngOutletContext

I’m trying to open an ionic2-calendar in my app. I get the error : "can’t bind to ‘ngOutletContext’ since it isn’t a known property of ‘ng-template’.
After a lot of research I found out that I had to change all ngOutletContext to ngTemplateOutletContext in the node-modules of ionic2-calendar, which I did, but I still get the same error.

Do any of you know what I can do to remove this error?
Thanks in advance,