javax.faces.FacesException: Can't parse stream for /main.jspx The tree tag requires a single child treeNode tag. Found [2]

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javax.faces.FacesException: Can't parse stream for /main.jspx The tree tag requires a single child treeNode tag. Found [2]
at com.icesoft.faces.component.tree.TreeRenderer.encodeBegin(TreeRenderer.java:309)
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:703)
at javax.faces.webapp.UIComponentTag.encodeBegin(UIComponentTag.java:613)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:565)
at com.icesoft.faces.component.ext.taglib.CommandButtonTag.doEndTag(CommandButtonTag.java:673)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:398)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.executeJspLifecycle(Parser.java:319)
at com.icesoft.faces.webapp.parser.Parser.parse(Parser.java:153)
at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:444)
at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:125)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
at com.icesoft.faces.webapp.xmlhttp.PersistentFacesServlet.service(PersistentFacesServlet.java:273)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:348)
at weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:150)
at jsp_servlet.__index._jspService(__index.java:122)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:348)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3892)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)

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