webMathematica problem
in [Mathematica]
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From: David Tann on 30 Dec 2006 05:25 Hi there, I can't run my webMathematica due the following problem? Can anyone tell me the cause and solution to the problem? Thanks, David HTTP Status 500 - ________________________________________ type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: A Kernel cannot be activated. org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextI mpl.java:825) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp l.java:758) org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:111) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause javax.servlet.jsp.JspTagException: A Kernel cannot be activated. com.wolfram.webmathematica.tags.AllocateKernel.doStartTag(Unknown Source) org.apache.jsp.Examples.Plot_jsp._jspx_meth_msp_allocateKernel_0(Plot_jsp.ja va:128) org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:91) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs. ________________________________________ Apache Tomcat/5.0.28
From: Chris Williamson on 3 Jan 2007 00:46 This generally happens because it cannot find Mathematica or it can't start a kernel due to a licensing issue. You should check to make sure that the proper path is being used in MSP.conf. If so you check to make sure there are not multiple kernels running that would prevent you from launching a kernel in webMathematica. Chris David Tann wrote: > Hi there, > > I can't run my webMathematica due the following problem? > Can anyone tell me the cause and solution to the problem? > > Thanks, > David > > > HTTP Status 500 - > ________________________________________ > type Exception report > message > description The server encountered an internal error () that prevented it > from fulfilling this request. > exception > javax.servlet.ServletException: A Kernel cannot be activated. > > org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextI > mpl.java:825) > > org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp > l.java:758) > org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:111) > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 > 24) > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > root cause > javax.servlet.jsp.JspTagException: A Kernel cannot be activated. > com.wolfram.webmathematica.tags.AllocateKernel.doStartTag(Unknown > Source) > > org.apache.jsp.Examples.Plot_jsp._jspx_meth_msp_allocateKernel_0(Plot_jsp.ja > va:128) > org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:91) > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 > 24) > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > note The full stack trace of the root cause is available in the Apache > Tomcat/5.0.28 logs. > ________________________________________ > Apache Tomcat/5.0.28 > > >
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