You can also try to :
adb kill-server
adb start-server
to restart the adb server. Maybe something went wrong with the adb-server. This happens a lot, and many such issues can be solved by restarting the server.
You can also try to :
adb kill-server
adb start-server
to restart the adb server. Maybe something went wrong with the adb-server. This happens a lot, and many such issues can be solved by restarting the server.