Opening App lab, it will be update.
When i allow access to the PC, after a few seconds, App lab closes and nothing else happens.
Running on Windows 10
Not sure if it is your case, but I was having issue with the Applab updating,
so I resolved it on my machine by uninstalling it, and downloading the and installing
the current version.
So far so good.
Hi Kurt,
thanks but your solution will install old version 0.2.4
After installation and open 0.2.4 the same procedure begins and crashes also.
Today I am experiencing the same problem. After some updates occurred to the Uno Q firmware, now when I open App lab and connect to the board, within seconds after displaying the examples, it will try to do an update to 0.3.0. This just kills the program and nothing else happens after that. Like you, I uninstalled/re-installed App lab from the link on their web-site. It just installs the older version, as you said and goes through the same loop. Very frustrating
It is very frustrating.
Now i tried to start Applab without network.
It doesn't start!!!!!
What a terrible solution!
That right. Until the App lab can connect to the Uno Q by USB or Network, it won’t even open up. Before I ordered my board, I wanted to run App lab to see how it worked/how many examples they provided. That wasn’t possible. That, plus the forced updates, which seem to happen every week, make it frustrating to use. But, I can see that when the Uno Q Linux firmware gets an update, it probably breaks the operation of App lab until it gets a matching update.
As of today the same issue. The only way I can get past this unskippable (!!!) update window is by setting my laptop in Airplane mode, launching Arduino App lab (I'm still on version 0.2.4) and starting the app I was working on. Then I take my laptop out of airplane mode and all functions well. But if I close the Arduino All Lab 0.2.4 and launch it again, I still get stuck in an endless update loop. In the task manager, there is an Arduino update process that stays running and if you try it a few times, you get many of those stalled background processes. Killing them doesn't solve the issue. So for the moment, only via Airplane mode I'm able to use the Arduino App Lab software in order to skip the update to 0.3.0 (that doesn't work).
I renamed anything that looks like Arduino in the %AppData%\Arduino or similar folder, but also, no luck.
Also, I got the message that I needed to update the device using the Arduino Flasher CLI (arduino-flasher-cli-0.4.0-windows-amd64), applied the update ( ./arduino-flasher-cli flash latest ), but even with this update still the same issues. Flashing the Arduino erases by the way all your apps from your Arduino! So make backups of your ArduinoApps folder before you do.
I just modified the download link from the App Lab webpage, and it worked!
https://downloads.arduino.cc/AppLab/Stable/ArduinoAppLab_0.3.0_Windows_x86-64_installer.exe
I had to uninstall App Lab and reinstall using v3.0, now its working!
Dear TMRh20, thank you very much! I can confirm that this works well! Highly appreciated! 
Kind regards,
Luc
YES, TMRh20 and luckrols, is working!
Very frustrating
same
Thank you so much! tried 4h yesterday and cant believe it was so simple
Hi all. I confirm the bug and have notified the Arduino App Lab developers. I will post an update here if I receive any news from them on the subject.
For now, please use the workaround provided by @TMRh20 of downloading Arduino App Lab version 0.3.0 and installing it by running that downloaded installer file instead of using the built in auto-update feature.
I apologize for the inconvenience this has caused.
For anyone who chances across this, please note that, as far as we are aware at this time, the problem is specific to using Arduino App Lab on a Windows machine (using the UNO Q in "hosted mode"). The download link provided in post #8 is for the Windows version of Arduino App Lab, so it can not be used for installing the latest version on computers running other operating systems.
From my initial investigation, I get the impression that the bug is specific to the way the Windows update system works, so I don't have any reason to believe it will affect updates on other operating systems. I have successfully updated Arduino App Lab on my macOS machine, and also on the UNO Q itself (SBC mode). So users of Linux, macOS, or UNO Q as SBC should allow the app to update itself as usual and not worry about needing to perform a manual update. If anyone does encounter problems updating on other operating systems, please let us know and we'll investigate that as well.
I encountered the same issues and the download from @TMRh20 works for me too! Thank you!
Same issue running on windows 10, System ask me if app can update i press yes the system crash. Please correct this problem, boards is unusable
Hi @maxpetra. I apologize for the inconvenience caused by the bug.
As was mentioned above, fortunately there is an easy workaround for the problem. The workaround is to simply install the version 0.3.0 of Arduino App Lab manually. In case it wasn't clear from the information in the previous posts, I'll provide detailed instructions you can follow to do that:
- Click the following link to download version 0.3.0 of Arduino App Lab:
https://downloads.arduino.cc/AppLab/Stable/ArduinoAppLab_0.3.0_Windows_x86-64_installer.exe - Wait for the download to finish.
- Run the downloaded file.
- Perform the installation by following the prompts provided by the installer.
After that, you will have the latest version of Arduino App Lab installed on your computer. You can then run Arduino App Lab and it will not attempt to perform a problematic auto-update as before.
Please let us know if you have any questions or problems while following those instructions.
Sounds easy enough but since I have other projects on the go I will likely wait for the bug fix. I expect you will tell us when a fixed release is ready for automatic update.
I will make sure to post an update here if I receive any news from the developers regarding a fix.
@ptillisch , is there any indication at Arduino that the modus operandi of App Lab will at some point be changed to avoid this situation where it must have a working Internet connection before it will even start?
There are scenarios where one might have an unreliable, restricted or temporarily unavailable Internet connection but where one might nevertheless like to be able to launch App Lab and work on a UNO Q project. Checking for updates in the background and prompting the user that a download is available to apply as is currently the case with the IDE should presumably not be beyond the realms of possibility? It does seem to be a more sensible approach?
Indeed what was the rationale for changing the update mechanism to work the way it does in App Lab?
I am holding out for the 4Gb version of the UNO Q so have all the fun yet to come. Thank you for responding so quickly though.
There is an official statement on the subject here:
https://github.com/arduino/arduino-app-cli/issues/101#issuecomment-3615968000
We are aware this is problematic and we are working on a fix, so that you will be able to skip updates and use the UNO Q board without needing to be connected to the Internet. The fix will be released in one of the next App Lab releases.
An explanation was provided in that same statement:
This was originally implemented to make sure users have the latest version of App Lab, and other Arduino software, even if the board comes with an older version.