I'm developing an app on x-code, but I can't run the simulator because there's an error saying "There are no devices registered in your account on the developer website. Plug in and select a device to have Xcode register it." could you please help me to solve the error?
Register a device on developer website
Do you have a currently valid paid Developer Program account, or...are you working with 'free provisioning'?
Which version Xcode are you using?