echo {{}}的laravel 5刀片模板不起作用

I am using laravel 5 and I have a blade templated page but {{}} doesn't work. It skips it and doesn't echo the value in it. For example. this code

<h2>Delete {{$employe->fname }} Are you sure?</h2>

Its output:

Delete are you sure?

with out the name of employee how can I fix this

the file is saved in blade extention delete.blade.php