属性“prefix”没有值

Question

我尝试在this example之后为一个纸张输入元素添加一个前缀。

<paper-input label="total">
  <div prefix>$</div>
  <paper-icon-button suffix icon="clear"></paper-icon-button>
</paper-input>

我主要担心的是，当我在Example.ui.xml文件中编写这段代码时，eclipse编辑器指出存在以下错误：

"Attribute 'prefix' has no value"

此外，如果我尝试执行代码，我会收到以下错误：

Compiling module com.dirigendo.test.Test
Computing all possible rebind results for 'com.dirigendo.test.client.Simulator.SimulatorUiBinder'
Rebinding com.dirigendo.test.client.Simulator.SimulatorUiBinder
Invoking generator com.google.gwt.uibinder.rebind.UiBinderGenerator
[ERROR] Attribute name "prefix" associated with an element type "div" must be followed by the ' = ' character.
[ERROR] Error parsing XML (line 22): Attribute name "prefix" associated with an element type "div" must be followed by the ' = ' character.
[ERROR] Errors in 'com/dirigendo/test/client/Simulator.java'
[ERROR] Line 12: Failed to resolve 'com.dirigendo.test.client.Simulator.SimulatorUiBinder' via deferred binding
[WARN] For the following type(s), generated source was never committed (did you forget to call commit()?)
[WARN] com.dirigendo.test.client.Simulator_SimulatorUiBinderImpl
Unification traversed 13255 fields and methods and 1072 types. 1049 are considered part of the current module and 1049 had all of their fields and methods traversed.
[ERROR] Compiler returned false
[WARN] recompile failed
[WARN] continuing to serve previous version

您能给我解释一下如何停用这个验证吗？我知道有一些环形交叉口我可以使用，但我真的希望有一个解决方案，其中将涉及不更改示例代码。

Answer 1

改为使用

<div prefix="prefix">$</div>

或

<div prefix="true">$</div>

聚合物只需要属性在那里，对于有效的XML，它需要有一个值。聚合物只是忽略该值。