Question getting an Object Variable

I am continuing my activity in the VS tutorial and at the stage of trying to allow my player to move and am having a problem with getting a variable I need in order to calculate its rotation speed.
The variable is a graph object int with value of 45.
I setup the variable and then drag the = icon onto the graph and I get a get Variable node not a Get Variable with a name.
I have restarted unity editor, unity hub and editor and my w10 system but problem persists.
I have added screen prints of what I am getting before and after the drag drop and an example of what I am expecting from the tutorial document.
Anyone any hints for me?

 

you just need to plug in a reference to the object with the script/vars

 

Thank you for that. It looks like a work round that might help me if I cannot get the root cause of this problem.
I have another visual script app that I developed as part of the previous section of the tutorial and that one works fine.
This one is not behaving the same as the last one.
I will resort to deleting this graph and create a new one from scratch to see if this is a side effect of using a previously developed graph in another app.