[Flow] Fatal error with composer package

[Toco]

Hi all

I've installed the Arcavias library (arcavias/arcavias-core on packagist.org) via composer but afterwards the ./flow command throws a fatal error that an interface can't be redeclared.

Inside the library the interface is only declared once and its name (MAdmin_Cache_Item_Inteface) doesn't collide with Flow classes.

Does anybody know why this happens? Any help is appreciated!


Toco