App crashes at .apk
<p>The app I created is running great on emulator or on my device when i connect the cable, but when I create an .apk file (I am sending it to myself )and I try to run it on my device in crashes.</p>

<p>In the past it worked in other apps I created but on that case it wont. 
 I am using the <code>.android/debug.keystore</code> with its default key(<code>android</code>). I've tried to create a new keystore aswell but the app still crashes when I run the apk.</p>

<p>Does anyone have any experience with this kind of error - has any clue how to fix it?</p>

<p>Edit:</p>

<p>the bugSense tells me:</p>

<pre><code>java.lang.NoClassDefFoundError: xx.xxx.xxxxx.xxxxx.CommonUtilities
at xx.xxxx.xxxxx.xxxxx.xxxxxx.onTabChanged(Tabs.java:617) 
at xx.xxxx.xxxxx.xxxxx.xxxxxx.initialiseTabHost(Tabs.java:544)
at xx.xxx.xxxxx.xxxxx.xxxxxx.onCreate(Tabs.java:90) 
</code></pre>
