App inventor windows emulator not working?

Bugs and Other Issues
1

so i tryed to use the emulator that MIT Provides at Installing App Inventor 2 Setup on Windows but after installing and then running the app and atempting to connect it to a test app i made it never loaded, infact failing without telling the browser that, but here is the logs, and yes i have tryed to uninstall and reinstall, this is a fresh clean installation on windows 10 20h2 (just about fully updated minus flash removal)

App Inventor version: 30.265.0
Architecture: AMD64

AppInventor tools located here: C:\Program Files\MIT App Inventor

ADB path: C:\Program Files\MIT App Inventor\from-Android-SDK\platform-tools\adb
Bottle v0.12.13 server starting up (using WSGIRefServer())...
Listening on http://127.0.0.1:8004/
Hit Ctrl-C to quit.

127.0.0.1 - - [30/Apr/2026 16:10:44] "GET /echeck/ HTTP/1.1" 200 39
Initializing the Android Virtual Device...
127.0.0.1 - - [30/Apr/2026 16:10:45] "GET /start/ HTTP/1.1" 200 0
emulator: Android emulator version 30.3.5.0 (build_id 7033400) (CL:N/A)
127.0.0.1 - - [30/Apr/2026 16:10:46] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:46] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:48] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:48] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:50] "GET /echeck/ HTTP/1.1" 200 39
emulator: ERROR: No initial system image for this configuration!
127.0.0.1 - - [30/Apr/2026 16:10:51] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:52] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:53] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:54] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:55] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:56] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:57] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:58] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:10:59] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [30/Apr/2026 16:11:01] "GET /echeck/ HTTP/1.1" 200 39

2

It looks like you did not start a Project at ai2.appinventor.mit.edu and Connect from there.

There are alternate emulators and connection techniques you can try at

I personally use BlueStacks.

3

The error message regarding a missing system image seems suspicious. If you look in the installation folder under program files, you should find a folder called from-Android-SDK, and within that a folder for system images. What do you see there?

4

sorry for a late response, my mouse desided it wanted to “retire” yesterday, anyways in the system-images folder inside of the from-Android-SDK folder there is a “android-30” folder, inside is a google_apis folder insides is a x86_64 folder, inside is a folder called data, and files, specificaly

Directory of C:\Program Files\MIT App Inventor\from-Android-SDK\system-images\android-30\google_apis\x86_64

04/30/2026 04:10 PM .
04/30/2026 04:10 PM ..
09/16/2022 03:47 PM 447 advancedFeatures.ini
09/16/2022 03:47 PM 2,282 build.prop
04/30/2026 04:09 PM data
09/16/2022 03:47 PM 18,874,368 encryptionkey.img
09/16/2022 03:47 PM 16,650,416 kernel-ranchu
09/16/2022 03:47 PM 2,984,443 NOTICE.txt
09/16/2022 03:47 PM 18,743 package.xml
09/16/2022 03:47 PM 2,752,761 ramdisk.img
09/16/2022 03:47 PM 294 source.properties
09/16/2022 03:47 PM 1,316,692,855 system.img.gz
09/16/2022 03:47 PM 1,048,576 userdata.img
09/16/2022 03:47 PM 167,772,160 vendor.img
09/16/2022 03:47 PM 356 VerifiedBootParams.textproto
12 File(s) 1,526,797,701 bytes
3 Dir(s) 976,150,528 bytes free

and inside data is

Directory of C:\Program Files\MIT App Inventor\from-Android-SDK\system-images\android-30\google_apis\x86_64\data

04/30/2026 04:09 PM .
04/30/2026 04:09 PM ..
09/16/2022 03:47 PM 46 local.prop
04/30/2026 04:09 PM misc
04/30/2026 04:09 PM system
1 File(s) 46 bytes
4 Dir(s) 979,800,064 bytes free

do you need any more info then that?