<pre><code class="lang-bash">$ gnome-terminal 
# Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: 
 Error calling StartServiceByName for org.gnome.Terminal: Timeout was reached
</code></pre>
<a target="_blank" href="https://askubuntu.com/questions/608330/problem-with-gnome-terminal-on-gnome-3-12-2">Problem with "gnome-terminal" on Gnome 3.12.2 - Ask Ubuntu</a>
If you are using Code::Blocks to develop a GUI application and you are unable to open the GUI app, you can try the following steps。
<pre><code class="lang-bash">Try to regenerate locales first:
# locale-gen

And then:
# localectl set-locale LANG=“en_US.UTF-8”

And reboot.
</code></pre>

```bash
$ gnome-terminal 
# Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: 
  Error calling StartServiceByName for org.gnome.Terminal: Timeout was reached
```

[Problem with "gnome-terminal" on Gnome 3.12.2 - Ask Ubuntu](https://askubuntu.com/questions/608330/problem-with-gnome-terminal-on-gnome-3-12-2)

**If you are using Code::Blocks to develop a GUI application and you are unable to open the GUI app, you can try the following steps。**

```bash
Try to regenerate locales first:
# locale-gen

And then:
# localectl set-locale LANG=“en_US.UTF-8”

And reboot.
```

Ubuntu can't open Terminal Application