Problem using barbatus:stars-rating

I’m new with meteor and I’m pretty sure this must something quite obvious but I can’t seem to make it work.
I’ve added the barbatus:stars-rating package, but when I insert the reference in my html code I get the following error: Parser Error: Unexpected token > at column 1 in [ {{> starsRating rating=4.5 size=‘sm’}} ].

Any ideas are welcome.
Thanks!
F.

That is inside a template, right? You need to show more your code

I tried with and without the template.
If I just comment the starsRating line everything works fine.

Thanks!

{{professional.name}}

{{> starsRating rating=4.5 size='sm'}}

Rating: {{professional.rating}}

{{professional.category}}, {{professional.location}}
Pedir presupuesto {{project.title}}