I have just installed Android studio but when I try to run my app I get the following error message
emulator: ERROR: This AVD's configuration is missing a kernel file!!
emulator: ERROR: ANDROID_SDK_ROOT is undefined
I am using Ubuntu 12.04 LTS and I have an intel B960 ( I have read that this cpu doesn't support virtualization ).
I read many answers ( on stackoverflow too ), but it doesn't work:
I checked that $ANDROID_HOME/Sdk/system-images/android-MNC/default/armeabi-v7a exists and is not empty.
I installed ARM EABI v7a from the AVD Manager.
I installed KVM by using:
sudo apt-get install qemu-kvm libvirt-bin ubuntu-vm-builder bridge-utils
But then I get this:
# kvm-ok
INFO: Your CPU does not support KVM extensions
KVM acceleration can NOT be used
what other do I have to try ?
It looks like your emulator is trying to use a version of the SDK that you don't have installed. You could either change the SDK of the AVD, create a new AVD with a different SDK, or install the appropriate SDK, and make sure that your environment variable is set correctly.
But frankly, I wouldn't bother. Get the Genymotion emulator instead. The difference between it and the built-in emulator can not be overstated. The free version has everything you need for basic tests. There are other emulators available, and I've heard they're all better than Android Studio's, but I only have personal experience with Genymotion. I ran a test where I started the Android Emulator first, and then the Genymotion emulator, and I had booted the Genymotion emulator and completed my test suite long before the Android Emulator finished booting.
Related
Setup:
Windows 11 Home 21H2 22000.132
AMD Ryzen 5900X
WSL2
Android studio lastest build (also tried with latest beta)
Problem:
As soon as I install WSL2, the emulator stops working. It's giving the following error message:
C:\Users\gusta\AppData\Local\Android\Sdk\emulator>emulator.exe -avd Android_TV_1080p_API_300
emulator: Android emulator version 30.8.4.0 (build_id 7600983) (CL:N/A)
handleCpuAcceleration: feature check for hvf
added library vulkan-1.dll
Failed to open /qemu.conf, err: 2
C:\Users\gusta\AppData\Local\Android\Sdk\emulator\qemu\windows-x86_64\qemu-system-x86_64.exe: WHPX: Failed to setup partition, hr=c0350005
C:\Users\gusta\AppData\Local\Android\Sdk\emulator\qemu\windows-x86_64\qemu-system-x86_64.exe: failed to initialize WHPX: Invalid argument
Using WSL2 at the same time as the android emulator was working before on an Intel i7 4770k processor, but stopped working after a processor upgrade to a AMD Ryzen 5900x and fresh install of Windows 11.
For clarification: I'm not trying to run the emulator from WSL2, I'm trying to run it from Android Studio. When trying to start it from Android Studio it never launches, when trying to run it from the Windows Command Line I get the above error.
The "Failed to open /qemu.conf" is possible to solve by creating that file manually, as explained by this answer. That however doesn't fix the two later errors with WHPX.
I've followed the official instructions on this page (Following the AMD with Hyper-V option WHPX). I think the problem has to do with Hyper-V running which WSL2 is using if I'm not misstaken. But according to the above link it should be possible to run the emulator at the same time as Hyper-V using WHPX. I've also tried using the Android Emulator Hypervisor Driver for AMD processors, which is giving me the exact same result.
Activated Windows features:
Thankful for any help, and please tell me if I need to add more information
Newer Answer
I found and tested in shorter toggle mechanism.
The configuration for Windows Feature:
Windows Subsystem for Linux is installed.
Windows Hypervisor Platform is installed.
Hyper-V is installed.
If you need the Emulator, you only need to turn off Hypervisor + Restart. Run: bcdedit /set hypervisorlaunchtype off
If you need the Docker back, you can run the hypervisor hence disabling Emulator. Run: bcdedit /set hypervisorlaunchtype auto
You need to restart after setting Hypervisor
You cannot run both at the same time. Another forum worth checking in How about running docker? in my older answer below.
Older Answer
I think I solved this issue, tested to run from CMD / Android Studio and ran perfectly as before installing WSL. There are several step we go:
Configuring Windows Feature:
Removed Windows Subsystem for Linux
Removed Windows Hypervisor Platform
Removed Hyper-V
Here is my current setup:
Reverting AVD setup
I know after removing there are some odds because the AVD still get the same error as before and expected to get into WSL. I stumbled and found something when ran:
C:\Users\[NAME]\AppData\Local\Android\Sdk\emulator\emulator-check.exe accel
That command will check the current accel. It explains that the Hypervisor need to be set off and give specific help:
run bcdedit /set hypervisorlaunchtype off.
After running the bcdedit, I restarted and all is reverted. Now I can run emulator both from CMD and Android Studio perfectly.
How about running docker?
Sad truth, yeah you cannot run both pararel. There are several workaround in this forum:
How can I run both Docker and Android Studio Emulator on Windows?
Several option ranging from changing emulator, add & remove docker when in need using above step, created nested vm, etc. My personal choice right now is using another Emulator for the time being and removed docker for the latter.
I finally got this working using this fix (answer number 48). Seems like a valid workaround until windows fixes this issue. I downloaded the compiled version for windows and moved it to my emulator path C:\Users\<username>\AppData\Local\Android\Sdk\emulator. Seems to be versions available for linux and mac as well but I haven't tested those.
This issue is tracked by Google bug https://issuetracker.google.com/issues/202188690
This problem only occurs with AMD processors, I have two systems both with WSL2 and Docker running on the latest Windows 11 (Insider Beta) build. One with an AMD Ryzen 5950 and one with an Intel i7-8086K.
On the Intel system the emulator runs fine with hardware acceleration together with WSL2 and Docker.
On the AMD I run into the same error when running the emulator with hardware acceleration. In the Windows 10 Insider builds before Windows 11 it still worked.
A very similar problem was introduced before in Windows 10 build 10.0.21292
and later fixed in build 21327. (https://github.com/microsoft/WSL/issues/6471) But this problem affected both Intel and AMD.
I haven't tried to turn off the AMD fTPM yet, as this is the only other change apart from updating Windows 10 Insider (dev ring) to Windows 11.
The Android Emulator Hypervisor Driver for AMD processors only works when the Windows Hypervisor is disabled, it's not used for WHPX.
The Windows Feedback is full of reports of this problem, please upvote them.
Android Studio emulator doesn't support run Hyper-V on Windows 11, we can disable Hyper-V to run but if we do that applications which require Hyper-V to run like WSL2, Docker then fail to run.
While waiting Google update Android Studio emulator support Hyper-V we have a workaround solution to run both by using another emulator which support Hyper-V like Bluestack 5 version "Nougat 64 bit (Supports Hyper-V)" at the link below
https://www.bluestacks.com/download.html
If you did all of those steps and still you are facing that emulator termination issue, then please upgrade or download your graphic card drivers and install it. After I installing Windows 11 this issue happened to my android studio emulator. Lot of steps I followed but nothing work. after that I checked my Graphic card drivers and install it. Now emulator working fine...
Is there any way of using Android emulator on High Sierra (10.13)?
When I run
./HAXM\ installation -u
It says:
HAXM silent installation only supports macOS from 10.8 to 10.12 !
The command line installation doesn't work and gives unsupported mac os version error, while the installation through IntelHAXM_6.2.1.mpkg works but kext is not loaded due to "Approved Kernel Extension Loading" changes,
So you will need to allow the extensions from Intel and restart your mac,
then launch the emulator like from inside Android Studio,
To enable go to System Preferences > Security & Privacy as shown in the screenshot:
I was able to install Intel HAXM drivers on my Mac using the instructions provided in this post. There might be other (better) solutions to this, but I have successfully managed to start the emulator this way. Essentially you need to disable the security protection on kext before trying to install the HAXM drivers.
This command will only work on Recovery OS, which means that you need to restart your Mac and hold command + R until the Apple logo is displayed. Next, you need to go to Utilities > Terminal and run:
csrutil enable --without kext
Then restart your Mac and log in, go here to download the latest Intel HAXM driver. Unzip if needed, edit the silent_install.sh file and search for the 10.12 OS version. You will find it on the line which should look like this
for v in 10.8 10.9 10.10 10.11 10.12
You need to add the 10.13 version after 10.12 (separated by space, just like the rest). Save the file and open a Terminal at this location. Run ./silent_install.sh and that should be it. To be sure it works, you can also run sudo kextload -bundle-id com.intel.kext.intelhaxm.
Now your emulator should work.
In order to re-enable the kext security protection, you need to restart your Mac in Recovery OS, open a Terminal window and run csrutil enable.
Intel Corporation just fixed it and released HAXM for macOS Sierra and macOS High Sierra, just download the ZIP and execute the .dmg file, then restart Android Studio. It worked for me, hope it works for you too.
Intel Link for the download : https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager-end-user-license-agreement-macosx
Use the new Hypervisor.Framework support on macOS.
Add this line in ~/.android/advancedFeatures.ini (create this file if it doesn't exist already).
HVF = on
Issue answered here:
https://issuetracker.google.com/issues/62395878#comment7
That's worked for me.
Also you can be updated with Intel HAXM as they fixed this error.
Download HAXM latest version here (Restart macOS Required):
https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager-end-user-license-agreement-macosx
Hope it help.
To verify that Intel HAXM is running, open a terminal window and execute the following command:
kextstat | grep intel
If Intel HAXM is operating correctly, the command will show a status message indicating that the kernel extension named com.intel.kext.intelhaxm is loaded.
Try to stop and stat again HAXM., than verify it works correctly.
To stop Intel HAXM, use the following commands:
sudo kextunload -b com.intel.kext.intelhaxm
To start Intel HAXM, use the following commands:
sudo kextload -b com.intel.kext.intelhaxm
You can use Google's 6.2.1's silent_installer.sh to properly install HAXM on High Sierra:
https://dl.google.com/android/repository/extras/intel/haxm-macosx_r6_2_1.zip
Otherwise use Android Studio's SDK Manager to download and install it for you:
This was not introduced until 6.2.1(Google Distribution only) which looks like a hotfix from the 6.2.0 version which would throw the following message:
HAXM silent installation only supports macOS from 10.8 to 10.12!
If you don't want to use HAXM, you can use the Hypervisor.Framework by ensuring you have installed Android Emulator 26.1.3
Documentation
The emulator is now fully compatible with macOS 10.13 High Sierra through either Hypervisor.Framework or HAXM 6.2.0.
https://developer.android.com/studio/releases/emulator.html#26-1-3
Try using Hypervisor.Framework as mentioned in this post.
https://issuetracker.google.com/issues/62395878
If you have already installed the latest Intel HAXM Manager (v6.2.1) then re-install it and restart your computer. It will fix the emulator problem. You will be able to run emulators again. Here is the link:
https://software.intel.com/en-us/articles/intel-hardware-accelerated-execution-manager-intel-haxm
Download this https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager-end-user-license-agreement-macosx
and install .dmg then restart pc.This worked for me.
I had to go to System Preferences > Security & Privacy, click the unlock button, and a message will pop up asking to allow Intel to run. After that, HAXM ran on High Sierra.
very specific case: if you keep android studio and sdk in separate partitions, and then you moved sdk to newly formatted partition, then in my case only uninstalling android studio and reinstalling it with new sdk is helped. sad story..
Im using ubuntu 14.04 LTS 32bit and Android studio 2.1 running on intel corei3 3rd gen, I have installed KVM and checked it using $kvm-ok and it showed INFO: /dev/kvm exists KVM acceleration can be used , so its working fine.
The thing is when I open Android Studio and AVD manager its saying Screenshot-click here , even though its already installed.
I tried the arm version thinkinh that would work without KVM but that too isn't working, it says in the log
/home/ajmal/Android/Sdk/tools/emulator: 1: /home/ajmal/Android/Sdk/tools/emulator: Syntax error: word unexpected (expecting ")")
Please Help
I removed Ubuntu 32bit and installed 64bit and tried the same, everything worked like a charm.
When I run an AVD from the Terminal on Ubuntu 14.04, the following command is working without problems:
my_name#host:~$ emulator -avd my_avd
But when I want to use tcpdump to capture the network-traffic, the emulator fails to start:
my_name#host:~$ emulator -avd my_avd -tcpdump ~/test.cap
qemu-system-i386: -tcpdump: invalid option
I have no problems running the emulator with tcpdump on Windows, but on Ubuntu and Debian it refuses to work. Might this be a Bug or am I missing something? The same problem occurrs when I want to use the option -timezone Europe/Berlin. In contrast, the option -dns-option 8.8.8.8 is working fine. The problem occurrs for every AVD.
Android SDK:
SDK Tools 25.1.1
Platform-Tools 23.1
Build-Tools 23.0.3
Android 6.0 SDK Platform Revision 3
Android 6.0 (Intel x86 Atom Image 32/64 Bit Revision 8 and ARM EABI v7a Image Revision 3)
Virtualization (KVM) is enabled on Intel Core 2 Duo. Oracle JDK 8 is installed.
The same behavior occurred on my Mac, the solution seems to be to add -engine classic to your command line call. So it reads:
my_name#host:~$ emulator -avd my_avd -tcpdump ~/test.cap -engine classic
Credits go to #Interix for posting this here
According to your emulator, -tcpdump is an invalid option. Check emulator -? or man emulator for the syntax. However, I'd be surprised if this would normally work at all - I haven't seen tcpdump integrated with anything as an argument by itself (though I'm sure it's not impossible).
Normally I'd expect to use tcpdump as a command by itself. Depending what tools you have installed, I'd run up the emulator, check what ports it's running, and run tcpdump against its port range separately if you're looking for incoming traffic. If it's outgoing, use tcpdump to trace the traffic to the destination you're going to use.
Cannot launch AVD in emulator.
Output: emulator: ERROR: x86_64 emulation currently requires hardware
acceleration! Please ensure KVM is properly installed and usable. CPU
acceleration status: KVM is not installed on this machine (/dev/kvm is
missing).
I tried several steps mentioned in related posts but nothing worked fine. That's why posted here.
Why not try to use Genymotion as your emulator? It is a fast emulator.
As the error message mentions you should set up kvm at first.
Set up kvm on your Ubuntu machine as refering the official Ubuntu help.