来自netty git repository的netty安全聊天示例中的编译错误(Compilation error in netty secure chat example from netty git repository)

 要在Zope2平台上使用Grok（由Plone使用），您需要安装正确版本的five.grok软件包 。 
 
 Grok是针对Zope Toolkit开发的，而ZTK中的发布者套件与Zope2发布者提供的API有略微不同。 five.grok桥梁的区别。 但是你需要有正确的版本才能进行正确的匹配。 
 
 对于Plone 4.1（Zope 2.13），请确保使用five.grok 1.3.1或更高版本： 
 
 
 
 
  
 修复重定向方法以正常工作。 与Zope 3不同，它不支持可信。 
 
 
 
 
 如果您要升级到Plone 4.2，则包含的versions.cfg文件中将包含正确的版本引脚。 

To use Grok on the Zope2 platform (used by Plone), you need to install the correct version of the five.grok package.
 
Grok is developed against the Zope Toolkit, and the publisher package in the ZTK has a slightly different API than what the Zope2 publisher offers. five.grok bridges that difference. But you need to have the right version to make the correct match.
 
For Plone 4.1 (Zope 2.13), make sure you use five.grok version 1.3.1 or newer:
 
 
 
 
  
Fix the redirect method to properly work. Unlike in Zope 3, it doesn't support trusted.
 
 
 
 
If you were to upgrade to Plone 4.2, the right version pin is included in the included versions.cfg file.