我正在尝试通过查看声纳参考插件中的代码来创建自定义声纳插件。但是这个参考插件无法在声纳仪表板中显示小部件？.erb 文件是
<div class="dashbox">
<h3><span title="<%= metric('random').description -%>"></span></h3>
<p>
<span class="big">
<%= format_measure('random') -%> <%= trend_icon(measure('random')) %>
</span>
</p>
<p><%= format_measure('message_key') -%></p>
<p>
<%= format_measure('ncloc', :suffix => ' lines', :url =>url_for_drilldown('ncloc'))
-%>
</p>
</div>
<div class="dashbox">
<h3><%= message('example.help') -%></h3>
<p>
<%= message('example.jdbc_login') -%> : <%= configuration('sonar.jdbc.username')
-%><br/>
<%= message('example.plugin_property') -%> : <%=
configuration('sonar.example.myproperty') -%><br/>
</p>
<p>
<%= message('example.eastwood_image') -%> : <br/>
<%= gchart('cht=bhs&chco=FF0000,00FF00,0000FF&chs=200x125&chd=s:FOE,THE,Bar&chxt=x,y&
chxl=1:|Dec|Nov|Oct|0:||20K||60K||100K|') -%>
</p>
<h3><%= message('example.widget_properties') -%></h3>
<table>
<tr>
<td>max: </td>
<td><%= widget_properties['max'] -%></td>
</tr>
<tr>
<td>param1: </td>
<td><%= widget_properties['param1'] -%></td>
</tr>
<tr>
<td>param2: </td>
<td><%= widget_properties['param2'] -%></td>
</tr>