Not working in Lumen

[burgoyn1]

I followed the instructions to add the package to lumen, but I get the following error:

Call to undefined function TwigBridge\Node\resolve()

In the file: /src/Node/EventNode.php on line 32, the function resolve() is called, but it is undefined.

[mastir]

src/Node/EventNode.php:33 
- $env = resolve('view');
+ $env = app('view');

resolve() is a helper function in laravel, doing nothing but call app() probably left for compatibility with older versions. helpers are not loaded by default in Lumen