AmauryPi ok, i see ?
That can't be a caching problem because two hours ago i installed your extension for the first time and got an error shown above.
Also, this works for me too:
{!! '<'.'?xml version="1.0" encoding="utf-8"?'.'>' !!}
I don't know how laravel and blade templates work, but it seems that php interprets blade code, finds <? and tries to execute it. After that laravel should kick in and execute sentences between {!! !!} with eval(), but it's too late, obviously.
