Develop Reference

App does not start in Genymotion

i have installed Genymotion recently, and everything is fine, but when I click on run icon in Android Studio, it asks to create AVD.
I want to test my app using Genymotion virtual device.

You need to install the Genymotion plugin for the IDE.
To install the Genymotion plugin for Android Studio.
In Android Studio, go to File/Settings (for Windows and Linux) or to Android Studio/Preferences (for Mac OS X)
Select Plugins and click Browse Repositories.
Right-click on Genymotion and click Download and install. To see Genymotion plugin icon, display the toolbar by clicking View > Toolbar.
Source: https://www.genymotion.com/plugins/

This guide for running app might help - Running an App in the Android Emulator.
Follow those steps, so you would be able to see the Select Deployment Target dialog.
Pay attention to the fact that your genymotion emulator should appear under the list of Connected Devices (and not under the list of Available Virtual Devices).
If you can't see your genymotion emulator on that list, please refer to this StackOverflow answer.

Have you created any virtual devices on GenyMotion. You should have a virtual device to run an app.
If you have virtual devices and they stop running on start, download Oracle VM Virtual Machine using this link I have this issue if i use the VM installed via GenyMotion. If you install VM using link, it can say VM is older but it works, otherwise it does not.

I had the same problem,
the genymotion device should be shown on the device chooser window, when clicking on 'run' icon in android studio but it doesn't...
in this link, your question is answered (but not such effective).
SOLUTION 1:
To solve this, follow the following steps.
open Genymotion app,
go to Settings -> ADB
select 'Use custom Android SDK tools'
and select location of your SDK.
the default location of sdk tools on Windows:
C:\Users\[your username]\AppData\Local\Android
tip: pay attention that 'AppData' folder might be hidden.
the default location of sdk tools on Mac:
/Users/username/Library/Android/sdk
image description for the solution 1
SOLUTION 2:
you can use a simple trick:
turn on your genymotion device (by clicking on the genymotion icon,
right of the bar and choosing your desired device)
close device chooser (On andoid studio)
open task manager(on windows ctrl + shift + esc)
pick 'process' tab
find 'adb.exe' maybe its 'adb.exe*32'
right click and select kill process tree (or End Task)
adb will again appear shortly kill its process tree again( maybe
more than one adb will be found kill all.)
then open device chooser (click run on android studio).
Bingo, your intended device is appeared.
this link leads you for more explanations
SOLUTION 3:
update your genymotion and virtualbox.(I did this but it didn't worked for me, it might be effective for you)
my suggestion is solution 2 to do!

i got the same problem
i am just new to android development even first day.
just go to menu bar and Run > Attach Debugger to Android Process than dialog after selection that option
find the process com.android.launcher and hit ok
than normally Click on Play icon to Run the Project it will Run on Genymotion

Waiting for Target Device to Come Online

I recently updated to Android Studio 2.3, and now when I try to run the application, the emulator does not come online. It times out after 300 seconds.
Additionally, The app has been experiencing a FATAL EXCEPTION ERROR (OOM), and I am not sure how to fix that either, or if that is part of the emulator problem.
Any help is much appreciated. Again, my knowledge in the program is very limited so if your answer can be kept simple, that would be great.

Following worked for me on Android Studio 3.x.
Step 1:
Open AVD Manager.
Step 2:
Right click and Wipe data for the virtual device you're testing on.

I too had the same problem, then I went to AVD manager and right click on the emulator and stopped it and I RUN the application again and this time it worked.
It may be a temporary solution but works for the time being.
Tools -> AVD manager -> right-click on the emulator you are using -> Stop
Now Run your application again.
Note: Sometimes closing the emulator directly is not working for the above-mentioned problem but stopping it from the AVD manager as mentioned is working.

In case you are on Mac, ensure that you exit Docker for Mac. This worked for me.

Three days on this, and I believe there's a race condition between adb and the emulator. On a request to run an app, with no emulator already running, you see the "Initializing ADB", then the emulator choice, it starts and you get "Waiting for target to come online". An adb kill-server, or a kill -9, or an "End Process" of adb with the task manager will cause adb to die, restart, your APK installs and you're good to go. It does seem funky to me that an "adb kill-server" causes adb to die and then restart here, but that's another mystery, maybe.

Another case is Android Emulator should be reinstalled. This can happen, when you install a higher version of Android Studio, then update SDK for it, and go back to previous one.
Tools - Android - SDK Manager - SDK Tools - Android Emulator -
uncheck, apply, check, apply
Disable Docker app if you have it (Mac users).
Restart emulator:
Tools - Android - AVD Manager
(or kill adb process in task manager).

Go to AVD Manager in your Android Studio.Right Click on your emulator,and then select wipe data.Then run your app again.
The emulator will perform a clean boot and then install your apk then your app will finally run.
Summary:AVD Manager---Right Click Emulator----Wipe Data----Run App Again
If the problem presists,then simply go back to your avd manager ,uninstall emulator,then add a new emulator.Once the new emulator is added,in your avd manager,run the emulator...Then run your app.
Its much simpler if you have an emulator already running from the onset before running your application for the first time

After trying all these solutions without success the one that fixed my problem was simply changing the Graphics configuration for the virtual device from Auto to Software (tried hardware first without success)

This solution works for me :
Tools -> AVD Manager -> click drop down arrow -> select Cold Boot Now

Below steps work for me
Close running emulator
Go to AVD Manager
Choose available emulator
In that action tab (last one), click on drop down arrow & select COLD BOOT NOW
Finally run your application

Seems like Android Studio (using version 3.5.1) gets into a weird state after a while. This worked for me.
File -> Invalidate Caches / Restart -> Invalidate and Restart

Go to AVD Manager right click on your device and select Wipe Data and Cold Boot Now.
For me it worked correctly.

After trying almost all the solutions listed above, what finally worked for me was to create a new virtual device using a "Google APIs" image instead of a "Google Play" image.

Seems that in my case the problem was in that the "Google APIs ARM EABI v7a System Image" wasn't automatically installed during installation of Android Studio.
After installing the image, the emulator began to work.
Screenshot of the SDK manager

Did not read all the answers. Anyway Accepted one didn't work for me. What did was upgrading the android studio to last stable version and then created a new virtual device. I guess my nexus 5p virtual device got out of sync with the android studio environment.

This worked for me on Android studio 4+ and Mac OS
Delete all AVD's that you currently have.
Go to Preferences > Appearance & Behavior > System Settings >
Android SDK > SDK Tools
Uninstall Android Emulator
Restart Android Studio.
Re-install Android Emulator from the same place.
Create a new emulator!

I discovered that having a running instance of Docker on my machine (OSX) prevented the Android Emulator from running (see Android Studio Unable to run AVD)
Previously, my emulator would appear to start, then fail before any device window was shown.
I also had to use 'kill -9' (as per #MarkDubya ) to get Android Studio to connect to the virtual device.

Like urupvog's answer, make sure that you aren't running any other virtual machines like VirtualBox. When I restarted my computer, AVD worked until I started Vagrant for backend development (then it wouldn't launch).
See Android emulator and virtualbox cannot run at same time for more info.

Check you don't have the deviced unauthorized, unauthorized devices reply the same error in the Android Studio, check the emulator once is on with the adb command.
$ adb devices
List of devices attached
emulator-5554 unauthorized
If you have of this way the emulator the Android Studio is waiting for be authorized and maybe this can solve the problem.
Authorized Devices
This is a error I have solved in Windows 10 with Android Studio 2.3.3

Fix for this issue is simple :
Go to SDK tools > SDK Tools
Check Android Emulator and click Apply
and sometimes you might see there's an update available next to it, you just need to let it finish the update

For those stuck on this problem on a device and not the emulator, make sure your app isn't set as the device owner.

Question is too old but may be helpful to someone in future.
After search many things, most of them is not worked for me. SO, as per my try This solution is worked for me. In short uninstall and install "Android SDK Tools" in Android SDK.
Few steps for that are below:-
go to "SDK Manager" in Android Studio
go to "SDK Tools" tab
Uninstall "Android SDK Tools" (means remove check(uncheck) ahead of "Android SDK Tools" and Apply then OK)
Close and Restart Android Studio
Install "Android SDK Tools" (means check ahead of "Android SDK Tools" and Apply then OK)
Image of Uninstall and Install Android SDK Tools again

The problem is that there is no link between ide and the emulator.
In our case - we lowered version of android for the app, that frustrated ide in emulator linking.
If we install Android 25 and bind project to it, and AVD Device on Android 25 as well - it links and apllies changes on the fly. If we downgrade to Android 14 and device on android 14 - it doesn't.
Used Android Studio 2.3.
To play with versions you can set in Gradle Scripts - build.gradle (Module: app):
android {
compileSdkVersion 25
defaultConfig {
minSdkVersion 15
targetSdkVersion 15
}
}
As a result app won't run on an Android 25 device with a message:
Installation failed with message Failed to finalize session : -26:
Package ru.asv.test new target SDK 15 doesn't support runtime
permissions but the old target SDK 25 does.. It is possible that this
issue is resolved by uninstalling an existing version of the apk if it
is present, and then re-installing.
WARNING: Uninstalling will remove the application data!

I also ran into this problem and probably found the solution that may help. The key is launching the AVD in the emulator first then run your App.
Following are the steps:
In the Your Virtual Devices screen, select the device you just created and click Launch this AVD in the emulator
Once the emulator is booted up, click the app module in the Project window and then select Run → Run
In the Select Deployment Target window, select the emulator and click OK.

For Linux users using KVM and facing this problem try setting the Graphics option on the Android Virtual Device to Software instead of Automatic or Hardware . As previously mentioned in this answer.
I can confirm that the method works for Arch Linux, Ubuntu 16.04, as well as windows with or without a proprietary graphics card using Android Studio version 2.3.1+

I am working on notebook, Windows 8. I solved this issue change mode from battery saving mode to balanced mode. Before that, an emulator didn't work and I see "Target Device to Come Online". Also didn't work Genymotion

I had a similar problem when updated my android studio. Somehow it changed my SDK path. I just changed it to my updated SDK path and it worked.
Android Studio -> File -> Settings -> Appearance & Behaviour -> System Settings -> Android SDK
Here you will find Android SDK location just click on edit link in front of that and browse and select the Android SDK from the file browser. Select and click on Apply.
Select AVD manager and start Emulator. This solution worked for me.

Go to terminal and type android avd. Select your AVD and select "Edit". Make sure you do not see No CPU/ABI system image available for this target - it will show in red font at the bottom. Change the target to the one that is available or download the ABI image. Sometimes, if you create an AVD from inside Android Studio, it does not ensure this requirement.

None of solutions above worked for me, so I had to wipe content of
C:\Users\your_name\.android\avd
and re-create emulated device

I've had the same problem (AVD not coming online) in a Linux system. In my case, I have solved it setting this environment variable:
$ export ANDROID_EMULATOR_USE_SYSTEM_LIBS = 1
This case is documented here: https://developer.android.com/studio/command-line/variables.html#studio_jdk

Finally, I solve this problem by setting the right export path in bash file:
export ANDROID_HOME=/Users/[username]/Library/Android/sdk

Android Studio does not detect the emulator

I am a newbie in Android Studio and I can't test my programs. Before using this I succesfully tested my android programs in eclipse.
After reading some questions in similar context I created a new emulator from
Tools-android-AVD Manager
But when I run the program it says No USB devices or running emulators detected(in select deployment target). How can I fix this

Try enabling USB Debuuging in the Android emulator itself, like you would do it on a real device. Settings-> Developer options-> enable USB Debugging.

Try this in android studio menu
Tools
-->
Android
-->
Enable ADB Integration
if is is already Enabled try to disbale and reenable this works most of time for me.

Try starting the emulator before opening Android Studio.

On Mac OS, I ran into this when JAVA_HOME was set incorrectly on a new machine I had just set up.
Resolved by:
Running java --version showed a pop-up that the JDK was not installed. I clicked the More Info button which took me to a download site.
Downloaded, and extracted to ~/tools/jdk-15.0.1.jdk
In .bash_profile set JAVA_HOME with full explicit path.

thanks for Yogesh Kuma
Sometimes wipe data helped.
if emulator launched you must close emulator,
open device manager -> open menu needed emulator -> wipe data->
you can launch emulator

You need to try to find a very small fragment (small Emu rectangle right in the center of the screen) (minimized emulator window) and enlarge it in all directions :)

Save your project to git
Wipe it from your computer
clone it
Open it with android studio
This steps work for me

Go to tools->android->AVD manager->then you can see the Android virtual devices.
If you dont have any devices,at the bottom shows create virtual device button then create new Virtual device,If you face issue i'll help you !

Genymotion Device doesn't appear on Device Chooser - Android Studio

I installed Genymotion with a virtual Box and the Genymotion plugin (Android Studio), created a new device and runs properly, even from Android Studio.
However when I hit the Run button, the Genymotion device does not appear on the Device Chooser, it says 'Nothing to Show' under the 'Choose a running device' radio button. How can I get the Genymotion device to appear on the Device Chooser and run my app? Is it something I am missing from the SDK manager?

This happens because Genymotion is shipped with outdated Android tools. To solve follow the steps:
Open Genymotion app,
Go to Settings -> ADB
Select 'Use custom Android SDK tools'
And select location of your Android SDK.
On Mac with a recent version of Studio that would be:
/Users/username/Library/Android/sdk/

I had the same problem,
but I solved it.
Before running genymotion you have to first click on run and wait until project compile and show you the empty device list and then you have to start your genymotion, after that it will appear.
click the run button to compile project
device empty list appear
start genymotion
device will appear in the list
That worked for me. Hope it helps.

Got the same issue on AS 3.3.2, I tried to select location of the Android SDK, or kill / restart the server. Still they didn't work.
After that, I install the genymotion plugin in AS and open the genymotion device manager, then check the actual ip address of the active genymotion device.
adb connect device_ip_address:5555
Now the device can be detected on device chooser.
P.S. Thanks #Ismail Iqbal for pointing out that the genymotion plugin is not necessary. You can also get the ip address from the emulator header.

I also am facing the same issue in new version of Android studio. following is my routine that everyday i am doing to solve this issue:
Click Run icon to see empty list of device
Close this list
Kill adb by:
adb kill-server
Sometime you need to run this command twice.
Start adb again by:
adb start-server
Click run again. Now I will see list of my emulators but not my Genymotion that is already up and running!
I will add my Genymotion by:
adb connect 192.168.56.101
This command has to be run when select device dialog is still open.
Now everything will be OK.

On Android Studio 2 :
Click on button "Attach debugger to Android process" on Toolbar.
Click restart.
Try run again.
Goodluck.

Tools->Android-> Remove check "Enable ADB Integration"
Run your app with appeared device.( you will get an error)
Set check "Enable ADB Integration"
Run your app

You can solve it quickly.
First make sure that genymotion emulator is opend.
close device chooser (On andoid studio)
open task manager(on windows ctrl + shift + esc)
pick process tab
find adb.exe maybe its adb.exe*32
right click and select kill process tree
adb will again appear shortly kill its process tree again( maybe
more than one adb will be found kill all.)
then open device chooser (click run on android studio).

I solved mine by:
First start android studio before starting genymotion. Then run the app in android studio and wait until you see the device chooser then start genymotion

Just in case someone is still looking for an answer. The software versions in which i faced the above issuue is -
Android Studio - 3.3.2
Genymotion - 3.0.1
So, now let's start with the problem. Just try the following steps:
Check if you have enabled Genymotion Plugin in Android Studio. For Windows, go to File -> Settings -> Plugins -> Search for Genymotion and see if it is checked. If you can't find it, Click on Browse repositories , search for Genymotion and install it.
Check the tick in the plugin:
Check if the Genymotion Emulator is running or not and Genymotion Main Screen shows status as Running or ON
(This was my problem. Although my emulator was up and running but Genymotion's Status was showing Booting). It usually takes some time to get the status from Booting to ON
Check for emulator status:
Check if your Min SDK Version is less than the Emulator's SDK Version. I faced it quite a lot in my initial days. For that, Go to your Module:app gradle file and see the Min SDK Version and the Emulators SDK Version is same or higher.
Check for Min SDK Version as highlighted in the image:
Hope this helps. If you still get any problem do let me know.

When you close the device, it is no longer available to the device chooser. You need to keep running the device from Android Studio.

I tried adb kill-server/start-server. But, It didn't worked.
Instead hitting this command 2-3 times quickly worked.
adb reconnect

In my case the genymotion path was not set ..so I solved it by clicking the genymotion icon from the tool bar and enter the path (the default in windows is C:\Program Files\Genymobile\Genymotion) then after starting the emulator it now appears in android studio

First you will have to run the genymotion from the android studio by pressing the genymotion icon after genymotion starts then press the run button, you will see the genymotion device option on deployment target dialog box.

In addition to the answers of this question :
My problem was about windows viruses , Last days i turned off my windows defender and i have't any other antivirus software in my system .
My SDK folder was full of virus , when i scanned Many viruses detected .
After removing viruses from my PC i had to remove SDK completely and download it again .
Finally notice that : For any reason , if the SDK files are
damaged may cause this error .
Now the problem is solved .

For This Problem:
Go to Project structure/project
In project SDK select simulator API version.
Done. Now your genydevice is added in the list.

I've tried from the android studio version 2.0 and the version 2.1, both does not compitable to genymotion. please use the version 1.5.1 or older than that.

Android studio: emulator is running but not showing up in Run App "choose a running device"

I have launched my emulator via the AVD manager and once it's running I have clicked on run app. I have waited a couple of minutes for my running device to show up in choose a running device but the window always stays blank.

Probably the project you are running is not compatible (API version/Hardware requirements) with the emulator settings. Check in your build.gradle file if the targetSDK and minimumSdk version is lower or equal to the sdk version of your Emulator.
You should also uncheck Tools > Android > Enable ADB Integration
If your case is different then restart your Android Studio and run the emulator again.

This thread helped me to solve my problem, in particular this answer:
In Android Studio go to Menu -> Tools
Android
Uncheck Enable ADB Integration

Had similar issue with my emulator.
Solved by Wiping Data of emulator
Tool > ABD Manager > Down arrow under Action Wipe Data
Note : This is remove all data inside emulator.

For anyone else having the issue - none of the answers provided worked for me.
My case may be different to others but I had Android Studio installed first which installs the SDK by default to: C:\Users\[user]\AppData\Local\Android\sdk. We then decided to use Xamarin for our projects, so Xamarin was installed and installed an additional SDK by default, located here: C:\Program Files (x86)\Android\android-sdk.
Changing Xamarin to match the same SDK path worked for me which I did in the registry (although through the VS settings I'd guess it's the same):
\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools\Path
Change the path to match the Android Studio SDK path, close everything, start the VS Emulator, run Android Studio, ensure ADB integration is off and try. It worked for me.

If you uncheck the ADB Integration, you cannot use the debug any more.You may just restart the adb server, run
$adb kill-server
$adb start-server
in Terminal to restart the adb server without restarting the Android Studio. Then the emulator shows up.

My emulator used to suddenly disappear but the app still continues to run.
Solution-
Open task manager and kill qemu-system (Under Android Studio). This will stop the emulator. Then restart emulator.

Your adb connection is broken.
close eclipse
open cmd-prompt type adb kill-server then adb start-server
reopen eclipse
run the project!

Wipe the data of your Android virtual Device and then start the emulator. Works for me.

I had the same issue on a brand new computer, and the reason was simple. Although I downloaded and unzipped the Android SDK, I didn't add it to the PATH. So:
On Windows, you have to launch envvar and there, add the path to your android/platform-tools
On MacOS, edit the .zshrc file in your home, and add
export PATH="$PATH:/your/own/path/to/android/platform-tools"

This answer is not proposing a solution. Just a workaround in case someone is looking
I am using Idea based Android Studio (some people are talking about eclipse one here)
When I launch the app in the emulator (using the Run App button of Android Studio) AVD shows up but the app does not launch or run.
However when I connect my mobile and launch the app on my mobile the App works (this itself took some time, enabling developer options on mobile and doing the right configuration)
Because My app is launching on connected mobile, I can say nothing wrong with App.
There is some problem with AVD integration which I could not figure out so As of now I am working around my problem following way.
1 - I installed the app manually by dragging the APK file on AVD. (APK file is app\build\outputs\apk\debug folder)
2 - Then my AVD was not showing the installed APP list.
3 - I searched my APP using Google bar on AVD and dragged the APP icon on the home screen of AVD.
4 - I can now launch the APP using my APP icon on the home screen of AVD.
**That's how I am working around my problem. **
I have verified that Run App Icon does install the Application. Installation, not launching, appears to be the problem for me.

try to open the emulator and run it parallel with android studio/eclipse and the option will be displayed to select in the choose the device(emuator name, mine is Genymotion).

Check the android path of the emulator.
I had to change the registry in here:
HKEY_LOCAL_MACHINE > SOFTWARE > WOW6432Node > Android SDK Tools
to the actual path of the sdk location (which can be found in android studio: settings-> System Settings -> Android SDK)
All the credit goes to the author of this blogpost www.clearlyagileinc.com/

start device from genymotion button (have to install genymotion before and setup genymotion folder location on settings)
run application
choose genymotion running device

in your device you want to run app on
Go to settings
About device >> Build number triple clicks or more
and back to settings you will found "Developer options" appear
go to and click on "USB debugging"
Done