Thanks! I did confirm that I can connect to 127.0.0.1:8001 when using wireless, but not when plugged into ethernet. Newer versions of iTunes did away with iDevice app support. Try some things, that you can use your laptop with WIFI is encouraging and indicative that something is probably blocking port 8001. Select the iCloud Download icon to begin the process of downloading an iOS app onto your Mac. You should be able to start it by typing aiStarter from a terminal. On GNU/Linux, this program is in /usr/local/bin. In case aiStarter somehow does need to be started manually on the Mac, find it using Spotlight, use the Finder to go to /Applications/AppInventor/ commands-for-App, and double click on aiStarter. On the Mac, aiStarter should start automatically, so Mac users should not have to worry about this. On Windows, there should be a button on your desktop that starts aiStarter. If it is not running, you'll get an error message saying that aiStarter does not appear to be running. Whenever you want to use the emulator or the USB cable, you need to make sure that aiStarter is running.

It provides communication between App Inventor running in the browser, and other parts of App Inventor. The aiStarter program is installed on your computer when you install the App Inventor Setup software. What is aiStarter starter and how do I start it? Apparently there is no activity at all, except for. Please wait: this might take a minute or two' forever. I had previously installed the 2.3 emulator, so: I did a hard reset I installed the new 3.0 emulator I restarted the mac Now, when I select Emulator in the Connect menu, I see a dialog saying 'Starting the Android emulator. This can be anything from a firewall, to another program using the same port. App Inventor lets you develop applications for Android phones using a web browser and either a connected phone or emulator. I'm trying to run the 3.0 emulator for macOS on a HighSierra mac. If you cannot connect to then you will have to look at what other programs on your PC may be interfering with connecting to the Companion. What you see isn’t important, it is the fact that you can see it. Note: There may only be the line “Directory /” or you may *also* see a listing of files which you should recognize as project assets (images, sounds etc.). If you get a directory listing (it will start with “Directory /”) then you are talking to the Companion. To test if this is the problem, while in this state, use your browser to go to Similarly if another program is using port 8001 the same thing can happen. If something is blocking that port, then it will not be able to receive any blocks. Instead you continue to see the “white screen” of the Companion claiming that it is waiting to get blocks. Some people have reported getting the Emulator running and even the Companion, but then their blocks do not load.

App inventor emulator on mac