No parameter found by that name - but it is correct

I am trying to get curtain panels to rotate according to a parameter value.No matter which way I try, the error above returns; the image shows multiple selection methods and use of different parameter setting nodes, and the parameter names as correct, but still I receive the stated error.

Can anyone assist?


maybe rotate the grid?

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You need to put your parameter names in quotes to input them as string values. Right now you are inputting nulls.


Thanks! how inattentive of me.