Apache Struts 2 Documentation > Home > FAQs > I'm trying to run the example in the tutorial on Tomcat, and it can't instantiate the VelocityEngine |

Apache Struts 2 Documentation
I'm trying to run the example in the tutorial on Tomcat, and it can't instantiate the VelocityEngine
Edit Page Browse Space Add Page Add News
Added by digi9ten, last edited by Ted Husted on Jul 22, 2006 (view change) show comment hide comment
Comment:
Update parent page
View page history

## Tomcat Says

    javax.servlet.ServletException: Servlet.init() for servlet webwork threw exception at
    org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:963)
    ...
    root cause

    java.lang.RuntimeException: Unable to instantiate VelocityEngine\!
    at
    com.opensymphony.webwork.views.velocity.VelocityManager.newVelocityEngine(VelocityManager.java:333)
    at
    com.opensymphony.webwork.views.velocity.VelocityManager.init(VelocityManager.java:146)
    at
    com.opensymphony.webwork.dispatcher.ServletDispatcher.init(ServletDispatcher.java:177)
    at
    org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:935)

## Solution

(Thanks to Keith Lea!)

It turns out Velocity's Avalon logging system was trying to write to my Tomcat folder.

So that it's on file somewhere for other people, I will describe the solution:

- I created a file "`velocity.properties`" and placed it in my `WEB-INF/classes` folder.
- Inside the file I wrote:

    runtime.log.logsystem.class=org.apache.velocity.runtime.log.NullLogSystem

This stops Velocity from logging, and the example application now works.