Gedmo Tree getPath Error: Node is not related to this repository 500 Internal Server Error - InvalidArgumentException

Question

I am getting error:

Node is not related to this repository
500 Internal Server Error - InvalidArgumentException

UPDATE 1: it does not matter if

Answer 1

Got it working!

Here are the needed changes:

instead of

nodeDecorator' => function($node) use ($repo)
{
    return ''. $node['title'] .'';
}

one should write

'nodeDecorator' => function($node) use ($repo)
{
    return ''. $node['title'] .'';
}

and in Category class add

public function __toString()
{
    return $this->getTitle();
}

That is it, path to each node now should be showing.