Develop Reference

android emulator doesn't display my first 'standard' helloWorld app

The standard new app HelloWorld doesn't run as it in the Android emulator.
On Apple Mac, I created an AVD : Nexus7-4.3-JellyBean ( Android 4.3 API 18 , CPU/ABI ARM(armabi-v7a) RAM 343 VM Heap 32 / Storage 200 MiB / SD Card 128 MiB)
then running HelloWorld from Eclipse ADT , I get the following in the console log ( no error stated ...)
[2013-12-07 16:11:22 - HelloWorld] ------------------------------
[2013-12-07 16:11:22 - HelloWorld] Android Launch!
[2013-12-07 16:11:22 - HelloWorld] adb is running normally.
[2013-12-07 16:11:22 - HelloWorld] Performing com.example.helloworld.MainActivity activity launch
[2013-12-07 16:11:22 - HelloWorld] Automatic Target Mode: launching new emulator with compatible AVD 'Nexus7-4.3-JellyBean'
[2013-12-07 16:11:22 - HelloWorld] Launching a new emulator with Virtual Device 'Nexus7-4.3-JellyBean'
The emulator is launched, it displays the Android log, then unlocking it with Fn F2 I get the home page and I can see the list of apps BUT HelloWorld is not there.
Why can't I see any information or at least any error?

Try resetting your adb as explained in

The Console log is not complete yet, after starting the emulator, apk installing will start then launching,
Try to manually start the emulator then run your app and choose the already running emulator and see what happen.
- I wanted to post this as a comment but it takes 50 reputation to do so :)

Need help, honeycomb emulator launch fails

When I run my application with Honeycomb emulator, it is showing the following error
[2013-01-25 17:56:54 - Demo] Launching a new emulator with Virtual Device 'Honeycomb'
[2013-01-25 17:57:07 - Emulator] Failed to create Context 0x3005
[2013-01-25 17:57:07 - Emulator] emulator: WARNING: Could not initialize OpenglES emulation, using software renderer.
[2013-01-25 17:57:08 - Demo] New emulator found: emulator-5556
[2013-01-25 17:57:08 - Demo] Waiting for HOME ('android.process.acore') to be launched...
[2013-01-25 17:58:24 - Demo] emulator-5556 disconnected! Cancelling 'android.demo.com.MainActivity activity launch'!
But other applications are running fine in other emulators like Gingerbread.
Did anyone face this problem? Please help me solve this.

may be this will help You
Go to the location C:\users\ur_pc_name\.android\cache and delete all the file

Android emulator is not starting for hello word

I'm just starting to learn android programming.
I downloaded the ADT and went through the manual for the hello world! project.
But when I want to run my project I see this in console:
[2013-01-12 19:34:20 - HelloWorld] ------------------------------
[2013-01-12 19:34:20 - HelloWorld] Android Launch!
[2013-01-12 19:34:20 - HelloWorld] adb is running normally.
[2013-01-12 19:34:20 - HelloWorld] Performing com.example.helloworld.MainActivity activity launch
[2013-01-12 19:34:20 - HelloWorld] Automatic Target Mode: Preferred AVD 'Nexus7' is not available. Launching new emulator.
[2013-01-12 19:34:20 - HelloWorld] Launching a new emulator with Virtual Device 'Nexus7'
[2013-01-12 19:34:20 - Emulator] emulator: ERROR: No initial system image for this configuration!
I'm using MAC OSX
Tell me if more information is needed!
Thanks!

Among the SDKs installed, your PC seems to be missing the system image required for the AVD to start.
Go to the SDK manager and check if the components have been downloaded properly or not.
For further details, check here.

Why is the emulator in eclipse restarting?

I am following http://developer.android.com/training/basics/firstapp/running-app.html
and trying to run my first android app on the emulator on my PC.
The emulator is running (started from eclipse)
I managed to lauch myFirst App via eclipse as described, although in this tutorial it should be added you have to wait minutes before the emulator is up and running.
Now my problem is that when I modify myFirstApp, and wnat to test it, that eclipse keeps starting a new emulator:
[2012-10-15 19:32:44 - MyFirstApp] ------------------------------
[2012-10-15 19:32:44 - MyFirstApp] Android Launch!
[2012-10-15 19:32:44 - MyFirstApp] adb is running normally.
[2012-10-15 19:32:45 - MyFirstApp] Performing com.example.myfirstapp.MainActivity activity launch
[2012-10-15 19:32:45 - MyFirstApp] Automatic Target Mode: Preferred AVD 'Hobbit' is not available. Launching new emulator.
[2012-10-15 19:32:45 - MyFirstApp] Launching a new emulator with Virtual Device 'Hobbit'
This is extremely annoying, because of the performance penalty to launch a complete emulator.
But what is even more frustrating that I get back the very first version of MyFirstApp in this new emulator.
When I restart myself the emulator from scratch I see this in the console:
[2012-10-15 19:55:42 - MyFirstApp] New emulator found: emulator-5554
[2012-10-15 19:55:42 - MyFirstApp] Waiting for HOME ('android.process.acore') to be launched...
[2012-10-15 19:56:57 - MyFirstApp] emulator-5554 disconnected! Cancelling 'com.example.myfirstapp.MainActivity activity launch!'
Why? The emulator is still running at this point. This cannot be the normal way of working. Can anybody help me out?

Go to Run -> Run Configuration in eclipse. Select your application and update the target tab at right side to "Always prompt to pick device"

If the emulator is running and doesnt show in Devices then try to reset adb.
In eclipse: Device tab-> Dropbown - > reset abd

Cannot run Android apps with eclipse on OS X 10.6

Running Eclipse 3.5.2 (Classic) in OS X 10.6.7 with the ADT plugin. I have the SDK installed and have run the SDK and AVD Manager to install all available platforms and tools. I have an AVD setup with Android 2.2 as the target API, and have configured the example 'Hello, Android' app for Android 2.1 Update 1, so compatibility should not be an issue. When I Run the application, it starts up the emulator, but gives me an error before the android startup animation appears. Here is the output in the Console window of Eclipse:
[2011-04-10 06:45:40 - HelloAndroid] ------------------------------
[2011-04-10 06:45:40 - HelloAndroid] Android Launch!
[2011-04-10 06:45:40 - HelloAndroid] adb is running normally.
[2011-04-10 06:45:40 - HelloAndroid] Performing com.twopoint7.testing.HelloAndroid activity launch
[2011-04-10 06:45:40 - HelloAndroid] Automatic Target Mode: launching new emulator with compatible AVD 'testDroid'
[2011-04-10 06:45:40 - HelloAndroid] Launching a new emulator with Virtual Device 'testDroid'
[2011-04-10 06:46:04 - Emulator] 2011-04-10 06:46:04.613 emulator[997:903] Warning once: This application, or a library it uses, is using NSQuickDrawView, which has been deprecated. Apps should cease use of QuickDraw and move to Quartz.
[2011-04-10 06:46:04 - HelloAndroid] New emulator found: emulator-5554
[2011-04-10 06:46:04 - HelloAndroid] Waiting for HOME ('android.process.acore') to be launched...
[2011-04-10 06:47:22 - HelloAndroid] emulator-5554 disconnected! Cancelling 'com.twopoint7.testing.HelloAndroid activity launch'!
Any advice on what might be going wrong would be greatly appreciated. I've found lots of posts (here and on other forums) that seem to indicate the NSQuickDrawView vs. Quartz warning seems to be a problem across the board but doesn't have a solution yet. I'm more concerned with the "emulator-5554 disconnected..." bit and the fact that I can't seem to run any apps in the emulator. Any other info I can provide which would be helpful? Any insight?
Thanks in advance for your time!

I guess you need to reset your adb after launch the emulator. In eclipse, go to window -> show view -> other -> device(under android folder).
In the device view, find and reset adb. Then run your apps.