Hi, I have this reference definition:
'Attribute': text -> ^ ^ ^ ^ .'Attributes' where 'Stock Level' ~> ^ ^ ^ .'Attribute Stock Levels'
And at another part of the model, I check wether the link holds:
switch > 'Line' . 'Attribute' & 'Stock Level' ( | node as $ => ...
But this gives me the following error message, targeting the
switch expression, specifically the
& 'Stock Level' part:
no valid 'value source' found for 'rule'. Unexpected 'value source': - expected: 'base' - but found: 'derived'
I do not understand what the error message means in this case. How should I interpret this?