When i want to try out my app it gives me this error
In all my accounts. HOW TO FIX IT PLEASE
I dont have much experience with that, but I would suggest you to reinstall the aiStarter on your computer, maybe that fixes it.
There are alternative ways to connect with a Companion on an emulator than aistarter.
It doesn't usually work and it's not updated also (unless you are talking about the newer beta emulator)
If I had to say a solution, I wouldn't recommend emulators other than Genymotion.