When I try to run an app, it shows the black phone and stays on "waiting for device to come online".
Now I tried to launch the emulator by clicking on the start button on the AVD Manager. It stays like this (black) for minutes and doesn't start.
I have seen a lot of people with this problem but couldn't find a working solution.
Emulator:
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I am developing an Android app in Android Studio. When I try to run it on an AVD, the AVD screen shows nothing.
The device frame is visible, but there is nothing inside it. The message "waiting for target device to come online" doesn't show up either.
Furthermore, I am unable to edit the graphics in the AVD settings. I have tried running the program both normally and from the AVD manager, but it doesn't work either way.
Other solutions which I have tried (and failed) are removing C:\Windows\System32\Wbem from the PATH environment variable, ending the ADB process in Task Manager, and wiping data from the AVD in AVD manager. Oh, and I even uninstalled and reinstalled Android Studio but it still doesn't work, even for a basic Hello World program. Any help would be greatly appreciated.
https://imgur.com/a/rzMmz3E
I faced this problem due to my ram several times and even after upgrading I had to make several changes. The best solution is to set up a new avd. use Nexus S, and a light image. Start with API 16 and when it works go ahead and create your desired AVD. Keep your eye on the pop up errors AVD shows like HAXM
It may seem silly but have you checked if the emulator is not locked?
Ok, when Emulator is not displaying anything and saying like, waiting for online,
after click on power button then what you have to do is Go to,
AVD Manager then in Actions section click on bottom triangle button and click on "Cold Boot Now" to make working your Emulator.
I had genymotion for couple of years and it was working fine with no issues
Today genymotion is not working fine and freeze its window
Also when I run the emulator the right menu for genymotion emualtor are in white and I can't even minimize it or click the exit button
I have tried to uninstall genymotino and virtual machine also tried to add new different emulators and i'm still having the same problem.
Can someone help me to fix this problem I had genymotion for a long time and it's the best and fastest emulator I have ever used.
When I launch the emulator manually from AVD I just get a blank screen. Android never loads on it. I tried all the different settings in AVD. I also let the emulator stay open for hours to make sure it wasn't just really slow. Please help!
I'm a complete newbie trying to learn how to write an app. I'm trying to run Hello World using the emulator in Eclipse on my Mac. I launch and unlock the emulator. Android Training then implies that I should click the Run icon in Eclipse. But the ADT Manager window is in front of the Eclipse window and Eclipse is disabled. If I minimize the ADT Manager window it just quits the ADT Manager, and then I must close the emulator window.
I did discover that I can run the app with the Run button without starting the emulator as a separate step, although that takes a long time to get going.
Another Answer implies that I can just rerun the app by clicking the run button again, but I can't do this because the Eclipse window is disabled.
I'm used to being able to use the IDE while a program (Yes, I'm an old programmer) is running. What am I missing?
Duncan
You're right - simply hitting run on the application cold turkey takes forever because the emulator has to initialize. When you click on your AVD Manager (where you can create, edit, and customize the android emulator you'd like to use), Select the emulator you'd like, then click Start.
After waiting for the emulator window to popup, just wait until the UI loads (when you can unlock the emulator).
At this point, it appears that the AVD Manager is still necessary (due to the "loading" type green bar along the bottom seemingly feeding the emulator), but you can just close the window, and the Eclipse window will become clickable again.
Now, you can just leave the emulator running. I typically leave it running for hours at a time (even overnight) and I can usually just click Run as Android Application and everything works perfectly.
I'm an Android newbie trying to learn how to port one of my apps to the Android platform. I've been following this tutorial:
http://www.vogella.de/articles/Android/article.html#overview
I'm stuck unable to boot up the emulator :( When I tell it to start, it would just stick at the "Android" boot animation for hours on end. I searched online and found some pages talking about disabling the boot animation. I did so and tried again. There's no boot animation (just the word "Android" flashing), but it's still hours with no sign of booting. 'top' shows an app called 'emulator' using a lot of CPU.
Am I doing something wrong? My system is an AMD Athlon X2 dual-core QL-60, 1900 MHz with 3GB ram.
Thanks for any help you can offer.
I had this problem and fixed it by deleting the emulator and creating a new one.
In eclipse:
Menu Window -> Android SVK and AVD Manager
Select Virtual devices (should be selected already)
Select the emulator giving you problems
Click edit to see the setting and remember them, click cancel.
Click delete to delete the emulator.
CLick create to create a new one that is the same as the old one.
Click start.
It started in about 30 seconds after I did that.
Normally the emulator starts in about 2-3 minutes for me. Then it mysteriously stopped working. I was seeing boot animation for 30 minutes before I gave up.
Note #1: Doing this will wipe your user data.
Note #2: As mentioned else where, it's a good idea to check "Enabled" for the snapshot, this lets you do faster startup next time.
Note #3: Also my new emulator came up in chinese. That's kinda of weird :)
Android emulator release 9 has new "snapshot" feature. You can save state of emulator (make image of emulator) and avoid booting when you start the emulator.
I see a similar problem while attempting to run applications on an emulator while the emulator isn't started yet. I find that starting the emulator manually via the "Window > Android SDK and AVD Manager" will load in just a couple minutes or faster, as expected. After the emulator is started manually in this way, you can load applications into it without issue.
I faced same problem on my laptop using I5 8GB RAM. The only solution that worked for me was connecting the laptop charger when launching the emulator. May sound wierd but this always works for me.