A Singleton Component for PID [Ess.Power] is already existing!

Can you please describe your issue more precise?
Thank you in advance.

I post json file for simulatorapp but tell me “Unable to get Response: A Singleton Component for PID [Ess.Power] is already existing!”

What are you trying to do?
What you posted is clear for sure…

i try Request JSON-RPC. And in console :

… if somebody else is willing to look into the magic glass bowl go for it… i dont know what you are trying to do

It is indeed not very clear what you are trying to do. All I can say is that there is a singleton component with PID “Ess.Power” and Component-ID “_power”, which is automatically activated. Maybe, from the error message, you are tring to activate a second one?
We can’t see your full Json-RPC request in the picture, it would help if we can fully see it.

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