Synaptic keeps crashing. When I open it, it asks for the sudo password. I give the password, then the synaptic window flashes for less than a second and then goes away.

What's wrong?

After seeing this problem I uninstalled synaptic using apt-get. Uninstalled, cleaned, removed, auto-removed, purged... every possible option from apt-get.

Then I tried installing synaptic from scratch. Still no luck.

Help please! I just did a clean install of Ubuntu 11.10 yesterday.

I also removed the ~/.synaptic folder -- no luck.

Here is the terminal output:

$ sudo synaptic
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check
  • I have the same problem and have yet no idea why it happens, might be a bug from a recent update. But i have a workaround for you: if you open it with "sudo synaptic", at least for me it works. – Dominik Oct 19 '11 at 21:40
  • hey @Dominik, i have added my sudo synaptic output of the terminal in the edit....... no luck. – Rakib Oct 19 '11 at 22:47
  • solve it.... posted the answer the question update ... check it out – Rakib Oct 19 '11 at 23:23
  • Do not post the answer IN the question put it as A proper Answer below!. – Uri Herrera Oct 20 '11 at 3:37

Solved it

from this link in ubuntuforums.org. In the post, Jsonwco writes:

It appears that it's related to accessibility settings. I was able to fix this problem on my system by opening Universal Access, enabling then disabling the screen reader, then opening Synaptic again.

  • 2
    Toggling the on-screen keyboard under accessibility settings worked for me. Thanks. – Usagi Nov 3 '11 at 15:56
  • thanks just solved my problem, hope developers clear this bug.. – emtin4 Feb 20 '12 at 10:49
  • The problem prevails in Ubuntu 18.0.4 and the screen-reader on/off option does not work!! – v2r Dec 9 '18 at 21:43


gsettings set org.gnome.desktop.interface toolkit-accessibility false

It worked for me.

protected by Community Nov 29 '11 at 22:17

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