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[animations] Name conflict for DualTransitionBuilder #59659
Description
Activity
Presumably this follow-up step could happen now?
this seems to be fixed because there is no unique copy of
DualTransitionBuilderinflutter/packagesat the moment, instead it uses the one from the flutter sdk, if i do https://github.com/search?q=repo%3Aflutter%2Fpackages%20DualTransitionBuilder&type=code shows 4 results (aside from the changelog, all of the usages are imported from the sdk), for these reasons i'm going to close this , feel free to create a new issue with more details if you feel this is not the case.This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.- locked as resolved and limited conversation to collaborators
on Mar 20, 2026
Since DualTransitionBuilder was introduced to
flutter/flutter: #58686, this can result in a naming conflict for theanimationspackage, since theanimationspackage also contains an identicalDualTransitionBuilder.We should have the
animationspackage use its own copy of the widget until DualTransitionBuilder reaches thestablebranch. Then, we can safely remove the copy of DualTransitionBuilder in the animations package.