"locationd" is the service that used to monitor where you are in the previous iOS versions. (read this)
after this happened, Apple released a new version that disable that, but added a new app as a workaround to still get these locations - it is called "Find my friends".
so if you have this app installed, it is still using this service, and this might show you these error messages.
when i disabled the "Find Friends" in the location services settings - I didn't get these errors again.
but then I enabled it again, since I'm using with this app..
I hope this tip helps, and that you are all having error because this app is installed.
Was anyone able to fix this?
The only way i'm able to stop this from happening is by turning ON airplane mode.
Even if I turn off cellular data, Wi-Fi and location services, i still get thar error message(and poor battery).
I even tried a restore from DFU mode. Same result. I don't know what else to do