Lambda function package not found error

Lambda has a maximum size of 250mb of all layers when extracted.

How big are your layers when extracted?

Hello.

The error is caused by Lambda's package size limit.
Does it include any other large packages besides Boto3?
If it only contains Boto3, I don't think it will be that size, so the layer creation method may be incorrect.
https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-limits.html

You can also get around size limits by using container images with Lambda.
https://docs.aws.amazon.com/lambda/latest/dg/images-create.html