out.print(skinJs);

An error occurred at line: 35 in the jsp file: /core/funcs/workflow/flowrun/new/edit.jsp
skinJs cannot be resolved
32:       out.write("/core/funcs/workflow/workflowUtility/utility.js\"></script>\r\n   <script type=\"text/javascript\" src=\"");
33:       out.print(contextPath);
34:       out.write("/core/funcs/workflow/lables/");
35:       out.print(skinJs);
36:       out.write(".js\"></script>\r\n<script type=\"text/javascript\" src=\"");
37:       out.print(contextPath);
38:       out.write("/core/funcs/workflow/workflowUtility/skin.js\"></script>\r\n<script type=\"text/javascript\">\r\nvar flowId = \"");
35:       out.print(skinJs);
很多都是一样的错误，是什么缘故啊？这段表示的是什么意思呢？请教高手！！谢谢！！