title: JasperReports Server: Input Controls error
body: <p>My question relates to an error when generating a report.</p>
  
  <p>In <em>JasperReports Server</em> created a Single Input Control Value but when you try to generate a report I get the error:</p>
  
  <pre><code>The server has encountered an error. Please excuse the inconvenience.
  
  
  Error Message
  
  net.sf.jasperreports.engine.JRRuntimeException: Invalid type java.lang.String for parameter SelectAsset used in an IN clause; the value must be an array or a collection.
  </code></pre>
  
  <p>In the preview <em>iReport</em> everything works flawlessly. I will put the value and generates a report.</p>