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MapView NullPointerException in onCreate

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http://stackoverflow.com – I am creating a MapView programmatically like this: MapView mv = new MapView(this); However this leads to a NullPointerException (see log). If I use another constructor such as MapView mv = new MapView(this, new GoogleMapOptions()); everything is fine. What is the matter? LogCat: 01-19 01:28:20.411: E/AndroidRuntime(16039): FATAL EXCEPTION: main 01-19 01:28:20.411: E/AndroidRuntime(16039): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example/com.example.ui.ListingsActivity}: java.lang.NullPointerException 01-19 01:28:20.411: E/AndroidRuntime(16039): at andr (HowTos)

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Submitted by dadebian on 01/19/2013 – Made popular on 01/19/2013

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02-17 23:36:42.321: E/AndroidRuntime(616): FATAL EXCEPTION: main 02-17 23:36:42.321: E/AndroidRuntime(616): java.lang.RuntimeException: Unable to resume activity {it.polito.elite.make_rules/it.polito.elite.make_rules.SlideActivity}: java.lang.NullPointerException 02-17 23:36:42.321: E/AndroidRuntime(61

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01-24 00:34:13.746: E/AndroidRuntime(4622): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pinchtapzoom/com.pinchtapzoom.AssignmentTracker}: java.lang.NullPointerException

01-24 00:34:13.746: E/AndroidRuntime(4622): Caused by: java.lang.NullPointerException

This is where the code start

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Here's the Log