The built-in library 'dart:html' is not available on the stand-alone VM.

[LSMetag]

I recently migrated from Polymer 0.16+3 to 1.0.0-rc.2 in my Dart project. I am using Dart 1.13.0-dev.5.0.

When I try to build the project I get these errors in various polymer, polymer_interop and webcomponent files.

"The built-in library 'dart:html' is not available on the stand-alone VM.' "The built-in library 'dart:js' is not available on the stand-alone VM."

It seems to compile when I remove these references.

Here is my pubspec.yaml file :

name: CVWebkit description: An online jobboard for employers and contestants dependencies: dart_config: any browser_detect: any sass : any polymer: git: url: https://github.com/dart-lang/polymer-dart.git ref: 1.0.0-rc.2 reflectable: 0.2.1 web_components: ^0.12.0

dependency_overrides: polymer_interop: git: ref: 0.2.0-rc1 url: https://github.com/dart-lang/polymer_interop.git reflectable: 0.2.1

transformers:

• polymer: entry_points: web/cvwebkit.html
• reflectable: entry_points: web/cvwebkit.html
• $dart2js: minify: true

[zoechi]

Your transformer config is invalid. Here is a working example http://stackoverflow.com/questions/32242736/import-and-make-use-of-polymer-dart-0-17-dev-preview You need to configure the entry_point once for web_components and once for the reflectable transformer while the former expects the path to the html file and the later to the dart file.

[LSMetag]

Thank you !

It works now ! Just a question : is it because you use "reflectable" that "@observable" is regarded as an error ? (Not a compile-time constant. @observable)

name: CVWebkit description: An online jobboard for employers and contestants dependencies: dart_config: any browser_detect: any sass : any polymer: git: url: https://github.com/dart-lang/polymer-dart.git ref: 1.0.0-rc.2 web_components: ^0.12.0 polymer_elements: git: https://github.com/dart-lang/polymer_elements.git

dependency_overrides: polymer_interop: git: ref: 0.2.0-rc1 url: https://github.com/dart-lang/polymer_interop.git reflectable: 0.3.0

transformers:

• web_components: entry_points: web/cvwebkit.html
• reflectable: entry_points: lib/cvwebkit.dart
• $dart2js: minify: true

[zoechi]

observable isn't necessary or supported anymore. In Polymer 1.0 you have to explicitely notify Polymer about about changes with methods your element inherits from the PolymerElement class like set(), add(), remove(), and notifyPath() ... You can find more details about how to work with Polymer 1.0 at https://github.com/dart-lang/polymer-dart/wiki#10-developer-guide. There is some work in progress to allow to work with observable like in the previous Polymer version, but I don't know about the status. See #570

[LSMetag]

Thank you !

Attributes are not supported.

Here is a part of the new way : https://www.polymer-project.org/1.0/docs/devguide/properties.html

[zoechi]

Glad to hear you got it working. Polymer 1.0 is exciting and working quite well already also the Polymer elements. At https://github.com/bwu-dart-contributing/polymer_elements/tree/demo2/demo you can find examples about how to use the elements in Dart Polymer 1.0 I added notes in the pubspec.yaml where I run into problems.

Not sure what you mean by

Attributes are not supported.

If your issue is resolved, please close this issue. Thanks :)

[dam0vm3nt]

If you want support for osservable in polymer 1.0 you can try

https://github.com/dam0vm3nt/polymer_autonotify

Il giorno dom 4 ott 2015 17:25 LSMetag notifications@github.com ha scritto:

Closed #613 https://github.com/dart-lang/polymer-dart/issues/613.

— Reply to this email directly or view it on GitHub https://github.com/dart-lang/polymer-dart/issues/613#event-426227553.