I have installed andriod studio 3.6 latest version and then configured by setting environment variables.
When i actually run virtual device Pixel 3 emulator, my PC ran in to problem with blue screen.
Blue screen error message:
Your PC ran into a problem and needs to restart. Were just collecting some error info, and then you can restart.
How to resolve this ? what is the problem ?
Just remove from windows features:
HyperV
Virtual Machine Platform
Windows HyperVisor Platform
Install:
Intel(R) Hardware Accelerated Execution Manager (HAXM)
Install Intel x86 Emulator Accelerator(HAXM) solved my problem
I had the same problem and spend a lot of time trying to solve it. Finally find what was the problem - Windows update!
This Windows patches are causing the problem - KB4554354 and KB4549949
Updating the Windows to version 1909 (OS build 18363.836) fix the issue for me.
If you can't update windows to this version for some reason you can try to remove this patches.
You can rollback and uninstall your recent update follow these Steps:
Press Start button then click on the Gear icon which is the Settings
Press "Update and Security"
Press "View Update History"
Select "Uninstall Updates"
A pop up should appear then scroll down to the bottom then on the Microsoft Windows section, right click the recent or all of the "Update for Microsoft Windows KB4554354" then Click "uninstall".
wait for the process to be finished then restart the PC/Laptop there you should have the fix on your update problems.
This is just to share my experience that the blue screen has stopped for me too, by updating Windows 10 to the version 1909.
Though it is not talked about here, I have the impression that it is related to the Microsoft's Hyper-V and the Windows Hypervisor Platform (WHPX), made available in the year 2018.
For me, the emulator was working till late last year, without the Hyper-V acceleration (I cannot be more precise. I do not use it everyday).
Earlier this year, I installed the Docker desktop, which must have turned on Hyper-V. The Windows update(s) may have come around the time (though I do not find them here. They may be part of one of the cumulative patches). Then it must have become that the emulator wouldn't work anymore.
Hope it helps others who suffer from the same problem.
i think the emulator is not working properly ......uninstall the current emulator and install trusted emulators like blue stacks ........blue stacks will work in old pc's also
I am working with Ionic Cordova project and trying to run emulator. I am using trial version of windows 10 pro, till now didn't put license, it is trial only. though Android studio, Java sdk, and Android-SDK installed correctly but when trying to start emulator (for a correctly created virtual image) it is failing to start. It is visible for 1 seconds after that it is never visible. In-fact event viewer also not showing any error log. is it due to trial version of win 10 pro? I have no clue why it is happening?
I have tried by both installing hyper-v and once unstalling hyper-v, but none worked. I am not sure if hyper-v feature should be on or off. What is correct way?
How did you install the emulators and SDK exactly? What Android SDK version is the emulator based on? Are you really using Visual Studio and the Tools for Apache Cordova? What VS version, cordova and cordova-android versions?
If you see emulator icon, but don't see window, just recreate emulator. This is because of bugs with emulator position (when emulator window is off-screen).
Anyway, try recreating virtual device
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
I am using Android Studio 2.0 Stable version. Whenever I click on the play button on the device to run it shows starting AVD progress in android studio and after completing it's progress nothing happened.The app window remains as it shown in screenshot and the emulator doesn't start. I can't find a solution for this issue. I have already tried many solutions which I found on the internet, changing HAXM version android SDK update, changed target API's. But nothing works.
Try edit AVD Settings -> Emulated Performance -> Graphics. Set Software - GLES 2.0.
Installing the Android Emulator (marked in to the image) solved my problem. If still you face face problem install API simulator and DHU emulator too. But only AE will solve the issue I guess.
I had exactly the same issue.
Windows 7 Professional SP1. Installed Android Studio 2.0, new HAXM ver 6.0.1 and updated to all new components like SDK tools 25.1.1.
When started - emulator do not shows up any window. 'emulator.exe' runs in the task manager and eats 25% of CPU.
Deleted all AVDs, re-created new; used AVD Manager directly; used ARM/Atom images (with/without HAXM); tried AVD with different API level - nothing helps.
Reverting to Android SDK Tools 24.4.2 helps - I can run emulator as usual - so, looks this is not the issue of new HAXM 6.0.1.
After day fighting finally got resolution:
I have removed C:Windows\System32\Wbem from system PATH variable.
I had the same problem. I just created the AVD with 768 MB RAM and it did run fine!
I have the same issues as you. I upgraded Android Studio to 2.0 stable which also updated the Android SDK.
I believe this issue is more of an Android SDK issue since using the SDK's AVD Manager directly I can replicate the issue.
As another data point, I've also modified the Virtual Device to only use 768MB RAM, to no effect. The Task manager shows the emulator using 2 threads and 13% CPU no matter how long I leave it running, but no window ever appears. I've tried with and without the HAXM. My virtual devices are running API level 21 (x86_64) and 19 (x86).
I've also reinstalled both Android Studio and the Android SDK without any affect. It could be a configuration issue due to the 2.0 and SDK upgrade, a broken SDK release, or something else entirely.
Reverting to Android SDK 24.4.1 allows the Emulator to start working again, but without the 25.1.1 functionality.
open cmd
type set and check if you can see C:\Windows\System32\Wbem in PATH variable
go to Control Panel -> System (on the left)->Advanced system settings -> (button at the bottom) Environment variables
Either in user variables (or more likely system variables) in variable PATH remove
%SystemRoot%\System32\Wbem (or C:\Windows\System32\Wbem)
restart studio
I stumbled upon the same problem. I checked SDK manager, turns out emulator has not been installed. After it's been installed, emulator start showing
I'm trying to develop an Android app using the Eclipse IDE and I want to debug using my physical Moto X (2nd gen, Android version 4.4.4). I thought it was as easy as turning on USB debugging on the phone, plugging it into my macbook (OS X Yosemite 10.10.1), running my Android application from eclipse, and selecting my device.
However when the device chooser dialogue comes up, it doesn't show my moto x in there. It shows all the Android Virtual Devices I have set up, but nothing under running Android device. What's particularly mind-blowing about this to me is that I can clearly see my device in the eclipse device view as online. I can also see it by going into the sdk folder and running adb devices. The only time to doesn't show up is when I try to run the application and select what to run it on.
Has anyone ever encountered this problem before? Is there something here I'm missing? I have the latest Android SDK all up to date, as well as my Eclipse (I'm running Juno if that matters). My Min SDK version is 11, and the Target is 21, so my device should be in that range. I have also tried restarting the device, eclipse, and even my macbook with no luck.
If you are on Yosemite, try to drag corner of one of the column headers in the device chooser box and it will show the device. This is a hilariously stupid bug on eclipse for Mac. Check this answer.
There might be something wrong with eclipse. Sometimes the only solution to fix eclipse is to redownload a fresh copy of ADT from website.
You say that you can see your device when you run adb devices.
In this case use eclipse to build your project then use adb to install the apk on the phone:
adb install /path/to/projectRoot/bin/myBuild.apk
Better yet I would take this as a sign to forget Eclipse and move to Android Studio. Version 1.0 was released today (no more beta).