Mainly, the `Configuration` class does not have an...

# dsl

[Marc Reichelt]

Mainly, the Configuration class does not have an isDirectory property - but how could the Groovy code then work in the first place?

[Dominaezzz]

You might need to do some casting.

[Marc Reichelt]

how should I cast Configuration to a File?

[Dominaezzz]

I'm not sure what type it really is. You could print it out with println() to check and then cast to the expected type with as.