Introductory
Breaking News:
Feb 17 2023 nb191 needs Companion 2.66 or 2.66u side load
Sep 22 2022 nb190 needs Companion 2.65 or 2.65u side load
June 2022 - Companion 2.63 PlayStore rollout hiccup - ewpatton
March 2022 - Please test Companion under https - Hal
Sept 2021 - Chrome 94 broke access to aiStarter
March 2021 - Chrome 89 broke Companion Connections - Fixed. - jis
Usage Techniques
Check the MIT Rendezvous server status - JIS
Connecting to App Inventor Emulator and Updating Companion - YouTube
Screen switching limitations in the Companion and Emulator - @Taifun
Switching to Landscape in the Emulator Ctrl-F11- Juan Antonio
Texting between multiple emulators - ewpatton
Other Emulators
Notes for Windows 11 Home users unable to install emulators - @ABG
GenyMotion
-
Using Genymotion emulator with App Inventor (updated 2020-04-28)
Android Studio emulator with AI2
Microsoft's free Visual Studio Android emulator
MemuPlay emulator setup and Companion startup - Italo, ABG
Light Weight emulator: Nox - AnirbanDev
MIT's 2021 beta version of their emulator
Androidx86
Use androidx86 as an emulator for AI2 - TIMAI2
Schools
School network setup for AI2 - SteveJG, MIT
Improved emulator setup - Troy Kozee
There is a way to tell the emulator to use an http proxy - jis
Platforms
Chromebook Companion setup - ewpatton
Ubuntu 10.04 instructions - SteveJG
Other
Companion App: install from unknown sources not working anymore - ewpatton
Delete Companion Files - Anke, TimAI2
How to Manually Update the Companion in the Emulator (when self-update fails) - Yong_Tang
Emulator.apk file Not Found Exception (ESET Antivirus)
Companion is using many UDP Ports on WebRTC connection
Companion Versions 2.53 vs 2.53u usage and improvements
Companion changes December 2018 - MIT
Emergency Companion 2.47 download link
Galaxy S7 USB connection needs RNDIS (USB-Ethernet) (not MTP) developer settings - TFO
How to run apk on Chrome with ARCWelder - Obsolete, Chrome dropped Apps.
[MIT AI2 Companion: NW.js + ARChon + Emulator.apk (windows) - Yong_Tang
URI is not absolute trying to read a Media //filename
Where to get the Emulator - Windows
YouTube video on Emulator Fix from Task Manager
Dead links
Debugging issues in running the App Inventor Setup Tools and the emulator on Windows (HAL)