I just installed Android Studio and I've been trying to figure out for the past 3 hours why it is that when I try to run my newly created project on a emulated phone it doesn't work. It's not even that the program doesn't work, it's that it freezes the moment I open it. I've tried uninstalling/reinstalling HAXM, SDK's for the phone, and recreating the phone / wiping the data on the phone and retrying, and nothing's worked so far. I'm wondering if anyone else has experienced this problem or knows what causes it? Please see picture to see what the problem is. P.S I'm using Android Studio on Windows. My system is beefy and should be able to run the emulator fine. I have Virtualization Enabled too.
This help me in getting it to work: switch off HyperV on Windows:
open Powershell as Administrator and run:
bcdedit /set hypervisorlaunchtype off
Reboot afterwards. Alternatively, run 'optionalfeatures' and select the HyperVisor platform to remove. To test if it really worked, run:
emulator.exe -verbose -avd <YOUR AVD NAME>
You can list the AVDs with 'emulator.exe -list-avds'.
Not my credits, but those of 'viet-quocnguyen'. See https://github.com/microsoft/WSL/issues/6471#issuecomment-770417782
I developed a quiz app for a project using Android Studio. The app worked fine and did what i expected it to do.
Recently i tried to update the data base so i needed to uninstall the app, but it keep crashing the default app manager on my Samsung Galaxy S6 phone.
Any ideas about what might be the reason for the crashing and not letting me to uninstall it??
You can try to use adb to install/uninstall apps
adb uninstall <Your package name here>
Note:
You have to run the above in command prompt
You need adb installed on your machine
and set %PATH% variable before trying
If app manager is crashing - it is perhaps not connected with your app - something else must be an issue:
Try to restart your phone (if still not try next option)
Try to reset your phone (Long press volume down and power button)
Couldn't use x86 emulators, AVD manager shows warning "/dev/kvm is not found" and telling me to edit BIOS security setting to enable VT-x.
Re-installing HAXM resolved my problem
Steps:
Make sure SDK Manager -> Extras -> Intel x86 Emulator Accelerator (HAXM installer) is installed
Navigate to <sdk>/extras/intel/Hardware_Accelerated_Execution_Manager/
Run ./HAXM\ installation -u
Run ./HAXM\ installation
For MacOS users running Android Studio, when you get this error then try these steps to open up your privacy settings.
You can also follow the answer from Divakar on this post here - /dev/kvm not found on mac
Thank you Apple for pushing me with your dumb*** app review rules from iOS to android development
You just need to "start" the HAXM. You can do this following this steps:
Open the cmd.
Type sc query intelhaxm, click enter and check the STATE.
If state is 1 STOPED, type sc start intelhaxm and click enter to start the HAXM.
Check the STATE again and it should be 4 RUNNING now.
Finally, you are now able to create and use your AVD using a x86 emulator.
Alternatively, when you want to stop the HAXM you should type sc stop intelhaxm.
Hope this helps y'all.
I had a similar message in the emulators area in Android Studio 2.1.
My emulator for a certain API (think 21) worked initially fine and was fully accelerated, then installed a couple of other images (Nougat x86/64 etc) and suddenly started seeing /dev/kvm not found and NO emulator would boot up.
In My Case, re-installing HAXM sadly did not help, but rebooting my MAC did (go figure).
But, I also noted that if you have installed an emulator image but not the related SDK for the API (which makes sense), then you get a similar pop-up when starting the emulator, which makes you think it may be a HAXM / KVM issue, which its not.
Hope this helps someone.
Update Bios Setting
Power on the system and press[delete] key to enter BIOS [EZ Mode]
Press [F7] key to enter BIOS [Advance Mode] as below picture：
(If press [delete] key to enter [Advanced Mode] directly and then no need to press [F7] key any more)
Select [Advanced] page and click [CPU Configuration] item
Select [Intel(VMX) Virtualization Technology] item and set to [Enabled]
Press [F10] key and click [OK] ,the system will auto reboot
On Mac OS, After installing make sure to allow Intel HAXM under "Security & Privacy".
This was the only way I was able to run the Android Emulator :)
Reinstalling and restarting did not work for me. Instead, I had to start my Mac in Recovery Mode (restart & press ⌘+R until Apple logo appears). Then open terminal from Utilities drop down menu. Type and run:
csrutil enable --without kext
You will get some warnings and instruction to restart for the changes to take effect. Restart and the emulator will run this time.
Reference:
https://blog.celogeek.com/201708/672/android-studio-emulator-haxm-on-mac-os-high-serria-10-13/
Just go to terminal and type
sudo chown 777 -R /dev/kvm,
then type
sudo chmod 777 -R /dev/kvm.
And restart android studio
And that's it..
In some case it may happened that for every start of android studio you need to type this commands First and then start android studio.
I couldn't install mine because I had HyperV enabled on my machine. Removed it and I was able to install the HAXM from the following link:
https://github.com/intel/haxm
Either your CPU does not support virtualization, or it is disabled in the bios. Go into your bios and see if you can find a setting to enable it.
I tried reinstalling HAXM a few times but kept getting the errors.
In my case I actually had to go into Bios Settings and enable Virtualization.
It worked for me. Just in case this helps anyone.
I've fully searched this site in order to solve my problem without any success.
My device is Sony Xperia Go (ST27i)
When I want to run my android application in Eclipse, I get this error:
No active compatible AVD's or devices found. Relaunch this
configuration after connecting a device or starting an AVD.
But I can see my device name in "device list" linked to USB ports.
Can you please help me about this problem?
Thank you.
see the
<uses-sdk
android:minSdkVersion="see here"
android:targetSdkVersion="see here" />
for compatibility in your manifest
Can you connect to your device? Try this from the command line:
adb shell
If this fails try this as root:
killall adb
adb shell
For future readers may have this problem:
I've installed Sony PC Companion and now I can use my phone in order to test the application.
Like many I get this error but none of the solutions I found here did the job. I don't get this error when installing on an emulator, but I get this error with every app I'm trying to install.
This morning my phone went into save mode. After that I can't install an app anymore. The phone is already out the save mode though.
I don't get any errors in my logcat. Don't know what to do anymore. Could someone help?
It is similar to this question, but the only answer he got, I already tried.
Problem solved tanks to LisuBB
You can try to uninstall app from your device by executing
adb uninstall _nameofapp__
Try also to restart Android server
adb kill-server
adb start-server
and then try to install again.
check your phone's memory and see if you have enough memory . and restart it and check again.
Does the adb install work?
If so, try to install on an external sdcard through the cmdline.