在安装完之后，点击Menu-> Window-> Preferences时，会出现报错框，内容为：
Unable to create the selected preference page.
Reason:
plun-in com.genuiter.eclipse.core was unable to load class
"com.genuitec.eclipse.ui.preference.ApplicationServerPreferencePage.
打开出错的细节按钮，提示：
com.genuitec.eclipse.core.ui.preference.ApplicationServersPreferencePage.
然后点OK后，进入配置MyEclipse时，在窗口右面出现：
An error has occurred when creating this preference page.
然后点Subscription时，出现同样的错误信息，
Reason:
Plug-in com.genuitec.eclipse.core was unable to load class com.genuitec.eclipse.core.ui.preference.LicenseDetailsPreferencePage.
点击Application Servers也会出现问题：
Reason:
Plug-in com.genuitec.eclipse.core was unable to load class com.genuitec.eclipse.core.ui.preference.ApplicationServersPreferencePage.
请问是什么原因呢，该如何解决？请详细说明，谢谢！
------解决方案--------------------
那是因为JDK的版本太低了，要JDK5.0的。