dart2native doesn't support --no-sound-null-safety

[Timmmm]

Using dart2native 2.12.0-133.2.beta on "mixed" null safe code I get the following error:

Error: Cannot run with sound null safety, because the following dependencies
don't support null safety:

 - package:async
 - package:stream_transform
 - package:path
 - package:crypto
 - package:collection
 - package:convert
 - package:typed_data
 - package:charcode

For solutions, see https://dart.dev/go/unsound-null-safety

That page mentions --no-sound-null-safety which sounds like exactly what I want, however it isn't a valid parameter to dart2native. So there's no way to compile my code with dart2native.

[lslv1243]

The same problem is happening to me while trying to use dart compile exe, when I try to use the flag --no-sound-null-safety it does not work