Boa tarde, galera, eu tô seguindo o curso do React Native parte 1, e na instalação me deparei com esse erro, porém, já tenho o virtual device criado sem problemas, igual o que indica no tutorial marshmallow x86-64 + google api, e ainda assim tenho esse erro, devo deixar o android studio executando em background ou algo do tipo?
Erro completo:
* What went wrong:
Execution failed for task ':app:installDebug'.
> com.android.builder.testing.api.DeviceException: No connected devices!
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/getting-started.html