test@ubuntu:~/work$ airtest run main_ui3.air --device Android://127.0.0.1:5037/VS7STS6TUKAU5TBE

[08:51:01][DEBUG]<airtest.core.android.adb> /home/qatest/.local/lib/python2.7/site-packages/airtest/core/android/static/adb/linux/adb -P 5037 -s VS7STS6TUKAU5TBE wait-for-device

ERROR: setUpClass (airtest.cli.runner.AirtestCase)

Traceback (most recent call last):
File "/home/qatest/.local/lib/python2.7/site-packages/airtest/cli/runner.py", line 37, in setUpClass
connect_device(dev)
File "/home/qatest/.local/lib/python2.7/site-packages/airtest/core/api.py", line 46, in connect_device
dev = cls(uuid, **params)
File "/home/qatest/.local/lib/python2.7/site-packages/airtest/core/android/android.py", line 35, in init
self.adb.wait_for_device()
File "/home/qatest/.local/lib/python2.7/site-packages/airtest/core/android/adb.py", line 271, in wait_for_device
proc = self.start_cmd("wait-for-device")
File "/home/qatest/.local/lib/python2.7/site-packages/airtest/core/android/adb.py", line 146, in start_cmd
stderr=subprocess.PIPE
File "/usr/lib/python2.7/subprocess.py", line 711, in init
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
raise child_exception
OSError: [Errno 13] Permission denied