I have found Migration guide (https://www.polymer-project.org/1.0/docs/migration.html). My Dart project does not use bower but pubspec.yaml and when I changed dependencies version for PaperElements I get message: paper_elements has no versions that match >=1.0.0
environment:
sdk: '>=0.8.10+6 <2.0.0'
dependencies:
browser: '>=0.10.0+2'
code_transformers: any
core_elements: '>=0.6.0'
dnd: any
logging: '>=0.9.3'
paper_elements: '>=1.0.0'
polymer: any
polymer_intl: any
vector_math: any
transformers:
- polymer:
entry_points:
web/index.html
inline_stylesheets:
packages/polymer/src/build/log_injector.css: false
- $dart2js:
minify: true
How to upgrade?
update
https://pub.dartlang.org/packages/polymer_elements
(ignore the deprecated comment in the readme)
original
There are no 1.0 elements for Dart yet. This is work in progress and before they are not published there is no way to use them the way you did previously. You can use the Polymer.js elements in the meantime of course but then you have to use bower and dart-js-interop.