I wanted to give the latest Dart Polymer lib a spin, so I updated the pubspec file and ran a pub install. However, the install fails with the following message:
Pub install failed, [1] Resolving dependencies.........
Package polymer requires SDK version >=0.8.1+1 but the current SDK is 0.7.6+4.r28108
Is it somehow possible to use the latest Polymer version via pubspec, or do I need to build the SDK myself from the sources?
https://www.dartlang.org/tools/editor/ has links to the bleeding edge, continuous build DartEditor
https://storage.googleapis.com/dart-editor-archive-continuous/latest/darteditor-win32-32.zip
https://storage.googleapis.com/dart-editor-archive-continuous/latest/darteditor-win32-64.zip
As of today, you should be able to upgrade 0.8.1.2 if you go to Help > About Dart Editor.
It seems pretty common that the libraries update a day or two before the SDK, so normally when I run into this problem I put in the pubspec something like the following until I can update the SDK:
dependencies:
polymer: "< 8.0.0"