[android-developers] google maps not showing

I updated an android app but the original developers are not available
so I had to create a new app on the android market. But it was
generally the same app. It contains a google map. However, the google
map does not render. I am getting messages like this on the log:

Couldn't get connection factory client
server returned 3 at android_maps_conflict_avoidance.com

So I think the issue is this line right here:

<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="some_long_string"
android:state_enabled="true"
android:clickable="true"
/>

Do I already have an apikey in the developer console somewhere or is
this something I am going to have to create?

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