<p>This is the output <code> GTK 2.24.30, GLib 2.48.2</code>. How can I solve this problem?<br>
I believe in ubuntu gtk2 and gtk3 are both installed as default</p>
<pre><code>>>dpkg -l libgtk[0-9]* | grep ^i
libgtk2.0-0:amd64
libgtk2.0-bin
libgtk2.0-cil
libgtk2.0-common
libgtk2.0-dev 
>>dpkg -l libgtk-[0-9]* | grep ^i
libgtk-3-0:amd64
 libgtk-3-bin
libgtk-3-common 
</code></pre>
<p>and I didn't compiled geany  in my system. I installed geany through the <a href="https://download.geany.org/geany-1.36.tar.gz" rel="nofollow">official tar file</a>.</p>

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