关于配置fckeditor 2.6.4 和fckeditor for java 2.4.1的问题

我用的是commons-fileupload-1.2.1.jar，commons-io-1.3.2.jar，fckeditor-java-core-2.4.1.jar，slf4j-api-1.5.6.jar，slf4j-jdk14-1.5.6.jar的包
Demo运行正常可是我按照配置的总是显示以下问题
javax.servlet.ServletException: Could not initialize class net.fckeditor.handlers.PropertiesLoader
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:841)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:774)
org.apache.jsp.index_jsp._jspService(index_jsp.java:95)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause java.lang.NoClassDefFoundError: Could not initialize class net.fckeditor.handlers.PropertiesLoader
net.fckeditor.FCKeditor.<init>(FCKeditor.java:50)
net.fckeditor.tags.EditorTag.doStartTag(EditorTag.java:127)
org.apache.jsp.index_jsp._jspx_meth_FCK_005feditor_005f0(index_jsp.java:118)
org.apache.jsp.index_jsp._jspService(index_jsp.java:82)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)请问如何解决可好 啊