I am having the following problem when I try to launch an app on my phone (screenshot attached)
Timed out waiting for process to appear on 'device'...
I am using Android Studio 3.5.3 and I am trying to launch the app on a Huawei P20 Lite with Android 9. I have not used Android Studio since last month and this is the first time I have this problem. I have already tried invalidating cache and restarting and it made no difference.
I think there is something wrong with the connectivity of your mobile with laptop. Mostly it happens due to faulty wire. Try using a different phone or a different cable. Hope it works.