My first Android Apps] ERROR: Application requires API version 15. Device API version is 3 (Android 1.5).

[2013-01-29 02:36:33 - My first Android Apps] Android Launch!
[2013-01-29 02:36:33 - My first Android Apps] adb is running normally.
[2013-01-29 02:36:33 - My first Android Apps] Performing androidrich.helloworld.andoroid.MyfirstAndroidAppsActivity activity launch
[2013-01-29 02:36:37 - My first Android Apps] Launching a new emulator with Virtual Device 'Android15'
[2013-01-29 02:36:48 - Emulator] emulator: emulator window was out of view and was recentered
[2013-01-29 02:36:48 - Emulator]
[2013-01-29 02:36:48 - My first Android Apps] New emulator found: emulator-5554
[2013-01-29 02:36:48 - My first Android Apps] Waiting for HOME ('android.process.acore') to be launched...
[2013-01-29 02:37:51 - My first Android Apps] ERROR: Application requires API version 15. Device API version is 3 (Android 1.5).
[2013-01-29 02:37:51 - My first Android Apps] Launch canceled!

Change the manifest.xml to the following code:

<uses-sdk
android:minSdkVersion="3"
android:targetSdkVersion="15" />

 

Problem solved.