That pin you’re trying to connect to doesn’t work that way.
What you need to do is pull off that Player Controller, and get whatever function it is you’re looking for. Preferably using a Blueprint Interface. Cast works too, but it’s suboptimal.
Here’s an example from my own project. You need to use that node and use it to define whatever function or component you need, and THEN you can connect up to the rest of the graph.
