I'm the author of StackApplet, so hopefully I can help shed some light on what's going on here.
First of all, the version in the Software Center is currently broken. This is because Stack Exchange recently shut down version 1.x of their public API (which StackApplet used). Right before this happened, I updated the source code and release StackApplet 1.5.2, which I have tested and can confirm works on Ubuntu 14.04.
Secondly, the new version is available in a PPA, but not the one you included in your question. You need to add the following PPA to your system:
ppa:stackapplet-dev/stackapplet
After installation, you can confirm that you have the correct version installed by using:
dpkg -s stackapplet | grep Version
After this is complete, you should be able to run the application directly from the dash.
Edit: you may also be missing the python-appindicator
package. You can make sure it is installed by running the following command in a terminal:
sudo apt-get install python-appindicator
Best Answer
Open up
~/.config/autostart/stackapplet.desktop
, verify that it is the same as this:The problem is likely with the
Exec
line, if you used to be using an older version that had a differentExec
command.Even if they are the same, try removing that file. Then un-check and re-check the
Start Stackapplet during login
checkbox.UPDATE: Looking at your
~/.xsession-errors
, StackApplet needs internet access to work. If you aren't connected to the internet right away on login, you'll need to delay StackApplet from starting before you have connected to the internet.Paste the following in a file called
.stackapplet-start.sh
in your home folder:Make that file executable:
Now open System -> Preferences -> Startup Applications, edit the
StackApplet
entry and change theCommand:
to/home/<USERNAME>/.stackapplet-start.sh
.