将Dart代码（使用Dart Polymer）编译成JS。我收到以下错误：
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).
有时消息是：
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'
这里有什么问题？这是我的代码：
更新：现在，pub build之后的代码已经改进并正常运行。我更改文件夹/文件结构并将聚合物更新到最新版本。
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
网络/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>
网络/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 （虚拟条目文件）
<!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>
网络/ main.dart
import 'package:polymer/polymer.dart';
main() {
initPolymer();
}
@whenPolymerReady
void onReady() {
}
pub build之后web / main.html （切入点）。编译后真正的混乱。如此多的js文件，其中一些大小甚至超过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>
答案 0 :(得分：1)
使用initPolymer时，您不需要@whenPolymerReady。在您的示例中，整个main()方法都是多余的。
您是否在pubspec.yaml？
烟雾需要变压器，但如果你正确配置了聚合物变压器，则包含烟雾变压器。