Exception: 'NoneType' object has no attribute 'unpack'

[shakaran]

I get the following trace in Ubuntu 17.04 development branch

[20061] Uncaught exception of type <class 'AttributeError'> occured
  File "/usr/bin/chrome-gnome-shell", line 226, in on_input
    self.process_request(request)
  File "/usr/bin/chrome-gnome-shell", line 375, in process_request
    'shellVersion': shell_version.unpack(),
[20061] Exception: 'NoneType' object has no attribute 'unpack'

[nE0sIghT]

Do you using Unity? Get me screenshot of your desktop

[shakaran]

I am using Ubuntu 17.04 with Gnome Session (Metacity). Sorry I cannot put a public screenshot here, I have confidential data

[nE0sIghT]

Show output of ps -ef | grep 'unity\|compiz\|gnome-shell'

[shakaran]

$ ps -ef | grep 'unity\|compiz\|gnome-shell'
root      2776     1  0 mar04 ?        00:00:00 /usr/lib/x86_64-linux-gnu/unity-greeter-session-broadcast/unity-greeter-session-broadcast-service
shakaran  8495  2853  0 mar04 ?        00:00:00 /usr/lib/gnome-shell/gnome-shell-calendar-server
shakaran 20060 19648  0 02:07 pts/8    00:00:00 /usr/bin/python3 /usr/bin/chrome-gnome-shell chrome-extension://gphhapmejobijbbhgpjhcjognlahblep/
shakaran 20112 10660  0 20:03 pts/6    00:00:00 grep --color=auto unity\|compiz\|gnome-shell

[nE0sIghT]

As you can see there is no GNOME Shell running. You can not use GNOME Shell integration and GNOME Shell extensions without GNOME Shell.

GNOME Shell looks like this:

[nE0sIghT]

Probably, you are using GNOME Flashback:

[shakaran]

ok, could you detect in some way the enviroment variable or check at least the exception for avoid the traceback in the terminal?

[nE0sIghT]

It's done already in #35 and available in 8.2 release of connector

[shakaran]

@nE0sIghT ok, thanks