Authorisation failed.

[REDACTED]

I just installed Avast Mac Security 2015 for the first time on my Mac, running Yosemite.

Although Avast seems to be running fine, when I try to disable one of the shields (e.g. Web Shield), or a feature of a shield (e.g. Scan secured connections), I am prompted for my account password, and then I’m shown an error:

Authorisation failed.
The operation couldn’t be completed. No such process

Is this a known issue?

[krahulik]

Hello Kevin,
  we have received arround three reports of this kind but unfortunatelly we cannot reproduce the issue. Could I ask you to try to disable one of the shields and to send us a support package? It can be generated through Avast application's menu: Help -> Avast Technical Support -> Generate support package.

It would help us a lot.

Best Regards,
  Martin

[REDACTED]

Hi Martin,

OK, I’ve sent you a private message with a link to the support package.

If it helps, the issue seems to be confined to my OS X user account. Other accounts on my system do not seem to have the issue.

Additionally, the issue seems to prevent the Avast icon from appearing in the menu bar.

[krahulik]

Hello Kevin,
Thank you for the response. I'm currently on holidays, so I hope colleges will try to investigate a root of the issue. Is your user account in something unusual? Best Regards,
Martin

[krahulik]

Hello Kevin,
  thank you for the support package. I have returned from holidays today and tried to find a source of the authorisation troubles but the only things I have noticed are:
- Launchd has been asked to start menu bar application, it didn't either complain nor started it.
- Authorisation succeeded but the privileged process hasn't been started by launchd.

I will try to investigate more about the issue but at this moment I have no idea what it's going on.

Best Regards,
  Martin