I created an emulator through AVD Manager and can start it.
But I can not run the application on it, since it does not appear in toolbar, but I can run the exact emulator, without application in it, like in AVD Manager page.
Go to File > Invalidate Caches / Restart and problem solved.
this issue normally comes in flutter. i hope the attached image
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I am facing this issue, the emulator was working properly but I tried to run it today and here what I get.
Solution: Check if there is an update, and then choose 'Cold Boot Now' option in the menu.
after that the screen came back normal
The emulator in my android studio keeps showing "shutting down". I try closing it and run again, restarting my mac, but nothing worked, each time I run it, it shows "shutting down" again. even though I can see actions running below (very blur)
Click on Tools
Click on AVD Manager
Click on the dropdown arrow next to the AVD which is stuck
Click on cold boot now
This issue occurs when we forcibly exit an unresponsive/stuck AVD. AVD manager saves the state before it is forcibly exited and on the next start it continues from the unresponsive/stuck state. This is useful when we need the AVD to boot up quickly, however if you want to disable this feature entirely then follow the steps below:
In the AVD manager, click on the pencil icon
A new window will pop up. Click on show advanced settings
Scroll down to the emulated performance section
Next to boot option, select cold boot
open AVD Manager Dialog from top right corner
go to your emulator
click on the last icon on the right which is a drop down button
Click wipe data
Important Note: this will delete all data on that emulator and give it a fresh install again and might solve your problem
If that didn't work then check that you have enough rams to run both the emulator and the android studio.
I run my emulator with cold boot by command line
cd C:\Users\<your_user_name>\AppData\Local\Android\Sdk\emulator
emulator -list-avds
emulator -avd <your_adb_name> -no-snapshot-load
If the cold boot or wipe data does not work, you can try deleting the lock file. Then quit the emulator, and restart it.
In my case, AVD Manager prompted me to delete the following files, I did it, and the problem was solved.
If it shows "AVD *** is already running etc." then just connect any mobile device that after enabling debugging mode and run your app in a physical device instead of an emulator then
Click on Tools
Click on AVD Manager
Click on the dropdown arrow next to the AVD which is stuck
Click on cold boot now
First of all:
You have to close the window, or tab of your Virtual Appliance.
With this you get Android Studio to standby the Device and unlock the ADV (Android Virtual Device) files, so you can manipulate the virtualization.
Maybe you have to wait until Android Studio kill the process. If Android doesn't do this automatic, you will have to close Android Studio and delete C:\Users{YOUR_USER}.android\avd{YOUR_DEVICE_NAME}.avd and within this folder delete all files and folders with extension .lock to stay secure before start again Android Studio.
After that:
Just open the Device Manager, and click on the down arrow in the Actions section for your device, and select Cold Boot Now. This reload the Virtual Device without start or open any program.
Finally:
If Cold Boot Now worked fine, now you can run or debug your application to check that it functions perfectly. Without the device continuing with the problem that the system is still stuck/frozen.
And also you do not need to do a Wipe Data, so you do not delete the data of your application, since you can have any internal database in SQLite, which has the changes and advances that you have been implementing or creating during the development of your application for its operation.
When I first start the emulator in Android Studio I get an information message,
guest hasn't come online in 7 seconds retrying
I am curious as to how to stop this because while it is on my screen for about 40 seconds I cannot do anything in the emulator.
Actually 'Cold Boot Now' may work in this situation
I had the same problem. Selecting Cold Boot Now in AVD manager solves the problem.
But I have to open AVD manager each time when I want to launch Emulator and I just want to click on Run app button and select device, without opening AVD manager.
To solve this: open AVD manager -> Edit device -> Show Advanced Settings -> Boot option -> select Cold Boot instead of Quick boot.
tools->Android->AVD Manager
Choose the device then Cold Boot Now
maybe it's bug from intel haxm 6.2.1, because after i update i got same problem.
I solved by recreate emulator and testing again
I managed to solve this issue by updating the .ini file manually. (I was not able to find a corresponding setting in the GUI.)
The location of the .ini file, relative to your home directory, is:
~/.android/avd/MyDevice.avd/config.ini
where MyDevice refers to the configured device name.
Depending on your operating system, you may find your home directory according https://en.wikipedia.org/wiki/Home_directory.
Change the entry within config.ini from no to yes:
fastboot.forceColdBoot=yes
I specified AVD memory 2048 Mbyte instead of 1536 Mbyte. Things
started to work again. (I'm developing on macbook.)
I tried "Kuldeep Chandel" solution which is to duplicate AVD and my app runs again too. Because of that I specified RAM again as 1536
Mbyte. Guess what... It worked...
I think AVD confuses to handle things and we need to duplicate the current AVD, and use it instead of the problematic one.
In "Your Virual Device" - Click on Duplicate OR Duplicate your Device. It will work like Charm.
I faced this issue on using Android API 28 emulator with Android Studio 3.0.1. Android API 28 requires Studio 3.1 and above. Once I updated Studio to 3.1.4 and Android Emulator to the latest version, it worked.
Seting default settings for problem device from Android Device Manager resolved issue for me.
When I select any emulator, I'm getting this weird old red phone. The screen is super small and I can't see anything. I've tried searching, but it looks like no one else has had this problem. Does anyone recognize it? My emulators did work fine, but I had to uninstall and reinstall Android Studio because it broke. After reinstalling, this is what's happening :/
Open AVD Manager in Android studio
Select the target emulator and click edit
Click Show Advanced Setting
In the Boot Option section select Cold Boot
Click on Finish
This solved my problem
Go to Tools>Android>AVD Manager and remove all device than add again. Hopefully this will fix your problem. I had exact issue when I moved my sdk folder.
You can try genymotion as your emulator. Its faster and more stable than android studio's emulator. Search on Google for more information.
I had the exact same problem.
I removed all existing devices from my AVD manager and re-installed one which is required. The problem went away.
I must be missing something totally obvious, but I can't find a simple way to simply stop an app from running. I'm running it on my HTC One.
I first tried toggling the green run arrow. Didn't work.
I found a "Terminate Application" circle in the lower left of the window. That doesn't seem to do anything when you click it. It seems to be grayed out, non-functional. Screen shot here
http://www.screencast.com/t/VLTOzPQ7
So, I closed the entire project. That worked, but also the entire Android Studio closed instantly. Then reopening Android Studio failed (stack dump). Then reopening again worked, but it took 30 minutes to load my project.
To stop the next time, I turned my phone off, then closed the project. That seems to have worked better, since it took me to the Welcome to Android Studio screen and invited me to open or start a project.
Maybe there's an easier way to stop an app? I see the same question on this forum but no solutions.
The Android Studio controls you are trying to use only work if you are running your app in the emulator. There are a few ways to do this when you are using an actual device or VM (e.g., Genymotion):
Use the UI of the phone to Force Stop the application. This is done in the Settings->Apps menu.
Use Android Studio's terminal window or the host's shell and issue the command:
adb shell am force-stop <package-name>
Open Android Device Monitor (green "Droid" icon), select the process under the Devices tab and click the Stop Process button (stop sign icon). This is basically the GUI way of doing #2.
You need to select the process you want to terminate (ex. com.myname.myapp) then click terminate application.
Since the application is running on your phone, you need to end the application process on the phone. When you do that the application would be shown as terminated on Android Studio.