Android and Google Maps

I am creating an Android app which is using Google Maps. Now, everything works perfectly on emulator, but when I deploy the app on my phone (temporarily just sending myself the apk file via g-mail), the app just crashes when it comes to the maps part. All I get is the "sorry" message.

I'm developing on Google API 7 and my phone (Samsung Spica) has Google Maps installed (and working). How can I find out what's causing 开发者_如何学Pythonthe problem?

Aren't you able to connect the device to your development computer and debug on the device so you can see Log cat messages?

You have to set

<application android:debugable=”true”>

in your AndroidManifest.xml