Hi Priyanka,

I am not sure if you have followed all the steps for invoking the emulator 
here so listing them below -

1. After building AOSP, you should have below files -

a) system.img
b) userdata.img
c) ramdisk.ing

in out/target/product.generic_x86/

2) Create AVD using avdmanager
avdmanager create avd -n a25x86 --tag google_apis -k 
'system-images;android-25;google_apis;x86'

3) Run emulator with prebuilt images-
emulator @a25x86 -verbose -show-kernel -shell -engine classic

3) run the emulator with your AOSP built images -
    emulator@a25x86 -verbose -show-kernel -system out/system.img -ramdisk 
out/ramdisk.img -initdata out/userdata.img   

Regards,
Saket Sinha                      

On Friday, December 28, 2018 at 1:32:48 AM UTC+5:30, Priyanka Bose wrote:
>
> Hi,
>
> I am am trying to run the emulator for aosp_source code : arm64 target. 
> I have downloaded the source code from the android AOSP master , and built 
> the android image .
> Everytime i try to start the emulator it hangs with android logo screen. 
> It never boots to the home screen.
> I followed the below steps to build the source code :
>
>  1. => source build/envsetup.sh  
>  2. => lunch aosp_arm64-eng 
>  3. => make -j24
>  4. => emulator
>
> List of devices attached
> adb server version (40) doesn't match this client (39); killing...
> * daemon started successfully *
> emulator-5554   device
>
> I can even see that emulator in the adb devices list on my host  but the 
> emulator screen just pops up with the "android" logo . It never boots to 
> home menu even after a long time
> I tried running  with "emulator -verbose" but i only get these debug logs :
>
> =======
> emulator: Starting QEMU main loop                                         
>                                                          
> emulator: registered 'boot-properties' qemud service    
> ...
> VERBOSE: AdbHostServer.cpp:49: Send [0012host:emulator:5555] to adb daemon.
> emulator: WARNING: Ignoring invalid http proxy: Bad format: invalid port 
> number (must be decimal)
> VERBOSE: AdbHostServer.cpp:49: Send [0012host:emulator:5555] to adb daemon.
> emulator: onGuestSendCommand: [0x5313d60] Adb connected, start proxing data
> emulator: 'magic' skin format detected: 480x800
> emulator: WARNING: UpdateCheck: Failure: Error
> emulator: WARNING: UpdateCheck: failed to get the latest version, skipping 
> check (current version '28.0.15-5109391')
> ==============
>
> Any help is appreciated to start the  emulator for arm ?
>

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