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將Polymer Dart編譯為JS后出錯。 (“煙霧”庫尚未配置)

[英]Error after compiling Polymer Dart to JS. (The “smoke” library has not been configured)

Аfter將Dart代碼(使用Dart Polymer)編譯為JS。 我收到以下錯誤:

Uncaught Exception: The "smoke" library has not been configured.
Make sure you import and configure one of the implementations
(package:smoke/mirrors.dart or package:smoke/static.dart).

有時消息是:

No elements registered in a while, but still waiting on 1 element to be registered. Check that you have a class with an @CustomTag annotation for each of the following tags: 'app-element'

怎么了 這是我的代碼:

更新 :現在,超越了的代碼得到了改進,並且在pub build后可以正常工作。 我更改文件夾/文件結構並將聚合物更新為最新版本。

pubspec.yaml

name: app
dependencies:
  browser: any
  #do not forget update to latest version by running pub update 
  polymer: any
transformers:
- polymer:
    entry_points:
    - web/main.html

網頁/模板/ UI-elements.html

<polymer-element name="app-globals"></polymer-element>

<polymer-element name="app-element">
  <template>
    <link rel="stylesheet" href="/main.css"/>
    <content></content>
  </template>
  <script type="application/dart" src="ui-elements.dart"></script>
</polymer-element>

網頁/模板/ UI-elements.dart

@CustomTag('app-globals')
class AppGlobals extends PolymerElement{
  AppGlobals.created() : super.created();
}

@CustomTag('app-element')
class AppElement extends PolymerElement {
  AppElement.created() : super.created();
}

web / main.html (虛擬條目文件)

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  </head>
  <body>
    <app-element></app-element>
    <script type="application/dart" src="main.dart"></script>
  </body>
</html>

網絡/ main.dart

import 'package:polymer/polymer.dart';

main() {
  initPolymer();
}

@whenPolymerReady
void onReady() {
}

pub build之后的web / main.html (入口點)。 編譯后真正混亂。 如此多的js文件,其中一些文件的大小甚至超過300kb。

<!DOCTYPE html><html lang="en"><head><script src="packages/web_components/webcomponents.min.js"></script><script src="packages/web_components/dart_support.js"></script>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  </head>
  <body><div hidden=""><style shim-shadowdom="">
/*******************************
          Flex Layout
*******************************/

html /deep/ [layout][horizontal], html /deep/ [layout][vertical] {
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
}

html /deep/ [layout][horizontal][inline], html /deep/ [layout][vertical][inline] {
  display: -ms-inline-flexbox;
  display: -webkit-inline-flex;
  display: inline-flex;
}

......tons of other styles...........

</style>

<script src="packages/polymer/src/js/polymer/polymer.min.js"></script>

<script>
// TODO(sigmund): remove this script tag (dartbug.com/19650). This empty
// script tag is necessary to work around a bug in Chrome 36.
</script>

<!-- unminified for debugging:
<link rel="import" href="src/js/polymer/layout.html">
<script src="src/js/polymer/polymer.js"></script>
-->
<polymer-element name="app-globals"></polymer-element>

<!-- APP ELEMENT -->
<polymer-element name="app-element" class="bck-medusa w-100 h-100">
  <template>
    <link rel="stylesheet" href="../main.css">
    <content></content>
  </template>
</polymer-element>
</div>
    <script src="main.html.polymer.bootstrap.dart.js" async=""></script>


</body></html>

你不需要initPolymer當您使用@whenPolymerReady 整個main()方法在您的示例中是多余的。

您是否在pubspec.yaml的Polymer變壓器配置中正確注冊了進入頁面?

Smoke需要一個變壓器,但是如果您正確配置了Polymer變壓器,則包括Smoke變壓器。

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