Emulator Won't Run Hello World App

Jan 27, 2012

I'm just getting started with Android programming, using Eclipse 3.7.1 and ADT 16.0.1. Naturally I started with the usual Hello World program. It runs fine on a physical device, but not on the emulator. When I run it on an AVD, here's what the console window says:

[2012-01-27 17:02:29 - HelloAndroid] ------------------------------
[2012-01-27 17:02:29 - HelloAndroid] Android Launch!
[2012-01-27 17:02:29 - HelloAndroid] adb is running normally.
[2012-01-27 17:02:29 - HelloAndroid] Performing com.example.helloandroid.HelloAndroid activity launch
[2012-01-27 17:02:42 - HelloAndroid] Launching a new emulator with Virtual Device 'AVD_4.0.3'
[2012-01-27 17:02:51 - Emulator] emulator: warning: opening audio input failed
[2012-01-27 17:02:51 - Emulator]
[2012-01-27 17:02:54 - Emulator] emulator: WARNING: Unable to create sensors port: Unknown error

That's all. The emulator starts up and appears to be working OK, but the app never shows up on it.

I can also start the AVD from the AVD manager window, and again it starts and runs OK. But if I try to run my app, the emulator doesn't show up in the list of running Android devices in the device chooser -I assume it should, since there's a column headed "AVD name".

Emulator won't run hello world app


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CODE:..........

My Eclipse console:

CODE:..................

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My Helloworld tutorial sample builds and runs just fine, except it doesn't show the text (i.e. loads apps). The only thing I see is that Emulator (Target 2.2 API level 8) comes up with just the "Android" in it. and then the emulator shows up a locked up screen in a while. Here is output from the console
[2010-09-20 10:36:55 - HelloAndroid] Android Launch!
[2010-09-20 10:36:55 - HelloAndroid] adb is running normally.
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at com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213)
at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573)
at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142)
at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java:65)
at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670)
at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317)
at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
[2010-09-20 09:38:47 - ddms]null
java.lang.NullPointerException
at com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213)
at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573)
at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142)
at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java:65)
at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670)
at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317)
at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
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com.android.ddmlib.AdbCommandRejectedException: device not found
at com.android.ddmlib.AdbHelper.setDevice(AdbHelper.j ava:736)
at com.android.ddmlib.AdbHelper.executeRemoteCommand( AdbHelper.java:373)
at com.android.ddmlib.Device.executeShellCommand(Devi ce.java:285)
at com.android.ddmuilib.logcat.LogPanel$3.run(LogPane l.java:516)
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