❔ ADO.NET Database First

I'm using ADO.NET Database First (EF6). I can set the connection and select the tables I want to generate the models, but when I confirm the models are not created and I get the error "Running transformation: System.NullReferenceException: Object reference not set to an instance of an object."
This is the first time it happens, I'm kinda lost... I'm using Visual Studio 2022 (17.6.1)