Version 4.1.0 fails to initialize AWS lambda: No module named 'ujson'

[Jef-VDD]

[ERROR] Runtime.ImportModuleError: Unable to import module 'lambda_function': No module named 'ujson' Traceback (most recent call last):

Issue seems to be related to #882

Problem occurs with Python 3.12 and architecture x86_64

Lambda seems to run fine with Python 3.12 and architecture arm64.

Could this be an issue with packaging the zip file for specific runtime and architecture?

[ge0Aja]

Hello @Jef-VDD
starting version 4.1.0 we've switched to arm64 arch see #898

Could you check that you don't have previous layers still running and that the arch is arm64 on the function runtime settings.

[haufe-durnerj]

Switching to arm64 fixes it.

Setup here: Python 3.12, arm64, forwarder 4.1.0

Thanks

[Jef-VDD]

Hello @ge0Aja

Thanks for the response! I am indeed able to run on an arm64 architecture. I just wanted to make sure that x86_64 is no longer supported by design and that maybe this should be added in the release notes?

[ge0Aja]

Hello @Jef-VDD
Yes we've switched to have arm64 by default from x86_64. I'll update the release note to indicate that.