Mit App download problems (emulator on Windows)

[Gianni_Romagnoli]

This window appears towards the end of the download even though the old program isn't listed in the Control Panel/Programs and Features/ or the one installed a few minutes earlier is listed.

[ABG]

FAQ Section: Companion and Emulator

Introductory Your First App Testing - MIT AIStarter for 64 bit Windows - MIT Sample Connect -> Companion sequence - @ABG Breaking News: Current Version, from the AI2 Help->Companion Info link: 2.75 Bugfix 2.73ad2 Dec 4 2024 2.73a Extensions Hotfix - @ewpatton Nov 29 2024 Extensions Hotfix - @jis Aug 27 2024 Android 14 bugfixes - @ewpatton July 7, 2024 nb197 needs Companion 2.71 or 2.71u side load http://ai2.appinventor.mit.edu/companions/MITAI2Companion.apk

Prior versions

Feb …

See my Windows 11 note in the Other Emulators section.

Get a good emulator elsewhere and run the Companion on that.

I only use BlueStacks.

[Gianni_Romagnoli]

This is the installation of MIT APP INVENTOR

[TIMAI2]

@Gianni_Romagnoli

This is the installation of MIT APP INVENTOR...

No, you are attempting to install the Appinventor Emulator.

If you want to install AppInventor locally on your machine, then you need the sources:

How to build App Inventor from the MIT sources

[Gianni_Romagnoli]

and blue stacks does not start, and when I start the emulator and immediately after it gives me a message that the starters do not work,

this appers in ai started
and i have deleted 12000 line (all the same)
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 - - [04/Aug/2025 11:34:15] "OPTIONS /ping/ HTTP/1.1" 200 0
127.0.0.1 - - [04/Aug/2025 11:34:15] "GET /ping/ HTTP/1.1" 200 88
127.0.0.1 - - [04/Aug/2025 11:34:30] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:30] "OPTIONS /echeck/ HTTP/1.1" 200 0
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host
127.0.0.1 - - [04/Aug/2025 11:34:30] "OPTIONS /echeck/ HTTP/1.1" 500 59

Exception happened during processing of request from ('127.0.0.1', 63798)
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "wsgiref\handlers.py", line 141, in run
File "wsgiref\handlers.py", line 368, in handle_error
File "wsgiref\handlers.py", line 180, in finish_response
File "wsgiref\handlers.py", line 274, in write
File "wsgiref\handlers.py", line 331, in send_headers
File "wsgiref\handlers.py", line 344, in client_is_modern
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "socketserver.py", line 316, in _handle_request_noblock
File "socketserver.py", line 347, in process_request
File "socketserver.py", line 360, in finish_request
File "socketserver.py", line 720, in init
File "wsgiref\simple_server.py", line 133, in handle
File "wsgiref\handlers.py", line 144, in run
File "wsgiref\simple_server.py", line 35, in close
AttributeError: 'NoneType' object has no attribute 'split'

127.0.0.1 - - [04/Aug/2025 11:34:30] "OPTIONS /echeck/ HTTP/1.1" 200 0
127.0.0.1 - - [04/Aug/2025 11:34:30] "OPTIONS /start/ HTTP/1.1" 200 0
Initializing the Android Virtual Device...
127.0.0.1 - - [04/Aug/2025 11:34:38] "GET /start/ HTTP/1.1" 200 0
127.0.0.1 - - [04/Aug/2025 11:34:39] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:39] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:40] "OPTIONS /echeck/ HTTP/1.1" 200 0
127.0.0.1 - - [04/Aug/2025 11:34:40] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:40] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:40] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:40] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:40] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:41] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:41] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:41] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:41] "GET /echeck/ HTTP/1.1" 200 39
127.0.0.1 - - [04/Aug/2025 11:34:41] "GET /echeck/ HTTP/1.1" 200 39
emulator: Android emulator version 30.3.5.0 (build_id 7033400) (CL:N/A)
127.0.0.1 - - [04/Aug/2025 11:34:42] "GET /echeck/ HTTP/1.1" 200 39

File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host
127.0.0.1 - - [04/Aug/2025 11:41:58] "OPTIONS /echeck/ HTTP/1.1" 500 59

Exception happened during processing of request from ('127.0.0.1', 49242)
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "wsgiref\handlers.py", line 141, in run
File "wsgiref\handlers.py", line 368, in handle_error
File "wsgiref\handlers.py", line 180, in finish_response
File "wsgiref\handlers.py", line 274, in write
File "wsgiref\handlers.py", line 331, in send_headers
File "wsgiref\handlers.py", line 344, in client_is_modern
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "socketserver.py", line 316, in _handle_request_noblock
File "socketserver.py", line 347, in process_request
File "socketserver.py", line 360, in finish_request
File "socketserver.py", line 720, in init
File "wsgiref\simple_server.py", line 133, in handle
File "wsgiref\handlers.py", line 144, in run
File "wsgiref\simple_server.py", line 35, in close
AttributeError: 'NoneType' object has no attribute 'split'

127.0.0.1 - - [04/Aug/2025 11:41:58] "OPTIONS /echeck/ HTTP/1.1" 200 0
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host
127.0.0.1 - - [04/Aug/2025 11:41:58] "OPTIONS /echeck/ HTTP/1.1" 500 59

Exception happened during processing of request from ('127.0.0.1', 49244)
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "wsgiref\handlers.py", line 141, in run
File "wsgiref\handlers.py", line 368, in handle_error
File "wsgiref\handlers.py", line 180, in finish_response
File "wsgiref\handlers.py", line 274, in write
File "wsgiref\handlers.py", line 331, in send_headers
File "wsgiref\handlers.py", line 344, in client_is_modern
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "socketserver.py", line 316, in _handle_request_noblock
File "socketserver.py", line 347, in process_request
File "socketserver.py", line 360, in finish_request
File "socketserver.py", line 720, in init
File "wsgiref\simple_server.py", line 133, in handle
File "wsgiref\handlers.py", line 144, in run
File "wsgiref\simple_server.py", line 35, in close
AttributeError: 'NoneType' object has no attribute 'split'

127.0.0.1 - - [04/Aug/2025 11:41:58] "OPTIONS /echeck/ HTTP/1.1" 200 0
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host
127.0.0.1 - - [04/Aug/2025 11:41:58] "OPTIONS /echeck/ HTTP/1.1" 500 59

Exception happened during processing of request from ('127.0.0.1', 49246)
Traceback (most recent call last):
File "wsgiref\handlers.py", line 138, in run
File "wsgiref\handlers.py", line 181, in finish_response
File "wsgiref\handlers.py", line 310, in finish_content
File "wsgiref\handlers.py", line 332, in send_headers
File "wsgiref\handlers.py", line 255, in send_preamble
File "wsgiref\handlers.py", line 453, in _write
File "socketserver.py", line 799, in write
ConnectionAbortedError: [WinError 10053] Connessione interrotta dal software del computer host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "wsgiref\handlers.py", line 141, in run
File "wsgiref\handlers.py", line 368, in handle_error
File "wsgiref\handlers.py", line 180, in finish_response
File "wsgiref\handlers.py", line 274, in write
File "wsgiref\handlers.py", line 331, in send_headers
File "wsgiref\handlers.py", line 344, in client_is_modern
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "socketserver.py", line 316, in _handle_request_noblock
File "socketserver.py", line 347, in process_request
File "socketserver.py", line 360, in finish_request
File "socketserver.py", line 720, in init
File "wsgiref\simple_server.py", line 133, in handle
File "wsgiref\handlers.py", line 144, in run
File "wsgiref\simple_server.py", line 35, in close
AttributeError: 'NoneType' object has no attribute 'split'

[Gianni_Romagnoli]

@TIMAI2

[TIMAI2]

Yes, the emulator

[ABG]

So why do you need the emulator?

Do you not have an Android phone that can run the Companion?