After I added the flutter_svg: ^0.23.0+1 in pubsec.yaml getting these error.
Please check your Flutter version.
At flutter_svg github issue page, there is a same issue and solution comment.
https://github.com/dnfield/flutter_svg/issues/610
If you are on stable channel, make sure Flutter version is at least 2.5.0. You need at least 2.4.0 pre for the latest version of this package