Bolt visual scripting jumping

I am trying to make this cube jump with bolt visual scripting. why does this not work. i only get an error message? it works if i connect the On collision enter 2d, but that makes a loop. how can i make it jump when i press space?

 

You get the error message because the event is not comming from on "On Collision Stay 2D". "Collider" is an output of "On Collision Stay 2D", so if that event is not being invoked (the green arrow), "Collider" will not be available.

I fail to find a non-event unit that returns a bool if a key is pressed. So to work around it. We need a graph variable called "Holding Space" that is set to true when "Space" is pressed, and set to false when "Space" is not pressed.



And then detect if "Holding Space" is pressed in "On Collision Stay 2D"