Unable to test app after upgrading to Lollipop

Question

I am using Android Studio to develop my apps.

Since I upgraded my HTC One M8 to Lollipop, I can not use it to test my apps by \"Run app\" in Android Studio. I get

Answer 1

I discovered a "workaround" to solve this problem

Find the HTC Blink Home Launcher and uninstall the update

(CAUTION:uninstall the launcher update will remove all icons and widgets placed on the launcher)

This works for me and it can be used debugging now without removing the apps in multitask. This should be a bug caused by HTC? (I am using HTC Butterfly 2 & Android 5.0.2)