Error al ejecutar Pub build

[erick2k1995]

Good evening when executing usr / local / src / security_monkey / dart $ / usr / lib / dart / bin / pub build, I get the following message Dart 2 has a new build system. Learn how to migrate from pub build and
pub serve: https://webdev.dartlang.org/dart-2 ", does anyone have any idea how to make the migration?

[mikegrima]

This is related to Google removing the Dart 1 code from their repos.

This is being tracked in #1206

[erick2k1995]

Thank you very much worked!