Ambiguous compiler error using Ver 8.1.0 SDK

I got this ambiguous compiler error when recompiling an app that worked under SDK 7.4.3

* Executing task: C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe -Xms1g -Dfile.encoding=UTF-8 -Dapple.awt.UIElement=true -jar c:\Users\akar1\AppData\Roaming\Garmin\ConnectIQ\Sdks\connectiq-sdk-win-8.1.0-2025-03-04-7ae1ed1cb\bin\monkeybrains.jar -o bin\HUD_Datafield2.prg -f d:\Garmin App Development\Backup Sep-6-2024\HUD_Datafield2\monkey.jungle -y c:\Users\akar1\Documents\GarminDev\garmin_developer_key -d venu3_sim -w

ERROR: null

* The terminal process "C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe '-Xms1g', '-Dfile.encoding=UTF-8', '-Dapple.awt.UIElement=true', '-jar', 'c:\Users\akar1\AppData\Roaming\Garmin\ConnectIQ\Sdks\connectiq-sdk-win-8.1.0-2025-03-04-7ae1ed1cb\bin\monkeybrains.jar', '-o', 'bin\HUD_Datafield2.prg', '-f', 'd:\Garmin App Development\Backup Sep-6-2024\HUD_Datafield2\monkey.jungle', '-y', 'c:\Users\akar1\Documents\GarminDev\garmin_developer_key', '-d', 'venu3_sim', '-w'" terminated with exit code: 100.

How to troubleshoot or fix this?

Is there any way to roll back and compile under SDK 7.4.3? When I try to do so I get this error:

ERROR: Device 'venu3' requires API Level '5.1.0'. The current SDK supports up to API Level '5.0.1'. Try updating your SDK using the Connect IQ SDK Manager.

0 jim_m_58 2 months ago

Have you tried different apps or different target devices?

0 flocsy🤠 2 months ago

Looks somewhat similar to this: https://forums.garmin.com/developer/connect-iq/i/bug-reports/bug-error-cannot-invoke-java-util-set-add-object-because-this-mfileinfo-is-null

There it's clearly a java bug in the compiler, here we don't even know if it's a compiler bug or a bug in the monkey c code, though probably it's in the java if this worked with 7.4.3

Plus I'm also stuck, and can't go back because of the updated device files

0 trudelta 2 months ago in reply to jim_m_58

Different targets are fine. Different apps are fine too. Previously exported the same app unchanged under SDK 7.4.3 with no problems.

0 Ultra 2 months ago

There are yet more bugs with this latest SDK 8.1.0, The project is not using the Bluetooth low energy API what so ever. The compiler is getting confused simply because a String variable is called State using the equals function. I've gone back to SDK 7.4.3 which at least works with my projects.

ERROR: edgeexplore2: E:\connect iq\AthleticaWR\source\WebDelegate.mc:194,4: Permission 'BluetoothLowEnergy' required for '$.Toybox.BluetoothLowEnergy.ScanResult.equals'.
ERROR: edgeexplore2: E:\connect iq\AthleticaWR\source\WebDelegate.mc:194,4: Permission 'ComplicationPublisher' or 'ComplicationSubscriber' required for '$.Toybox.Complications.Id.equals'.

0 jim_m_58 2 months ago in reply to Ultra

with 8.1.0 -

What happens if you change the name "State" to something unique? Still get the errors?

Could the errors be coming from type checking? Try turning it off to see if you still get the errors.

Which version of the extension? if 1.1.x, try moving back to 1.0.x

---

I have a number of apps with and without BLE and publish complications in some, and not seen anything similar with 8.1.0

0 Ultra 2 months ago in reply to jim_m_58

What do you mean by extension, no idea what you are referring to? The only thing I've changed is selected 8.1.0 as the SDK. I do not mention bluetooth at all in my app, I do not import Toybox.Bluetooth etc anywhere. I do not do anything with complications in the app. The compiler has a bug.

0 jim_m_58 2 months ago in reply to Ultra

If you are using VSC, there is the Monkey C extension.

The thing is, you may need to experiment to discover what causes the bug.

Does this only happen with one of your apps or with multiple apps? that could also be a clue. Windows or a mac? That could be another clue...