servlet mapping issue?

[Stephen Huey]

Anyone familiar with this stuff that's showing up in my Tomcat stderr logs?
SEVERE: Parse Error at line 914 column 11: The content of element type "web-app" must match "(icon?,display-name?,description?,distributable?,context-param*,filter*,filter-mapping*,listener*,servlet*,servlet-mapping*,session-config?,mime-
................
In my web.xml, I have the following in my web-app element:

<servlet>
<servlet-name>LoginLookup</servlet-name>
<servlet-class>wwxchange.LoginLookup</servlet-class>
</servlet>

  <servlet-mapping>
    <servlet-name>LoginLookup</servlet-name>
    <url-pattern>/LoginLookup</url-pattern>
  </servlet-mapping>
<servlet>
<servlet-name>Controller</servlet-name>
<servlet-class>wwxchange.Controller</servlet-class>
</servlet>
  <servlet-mapping>
    <servlet-name>Controller</servlet-name>
    <url-pattern>/Controller</url-pattern>
  </servlet-mapping>

The one for my Controller servlet was already working (I finally figured that one out), and then I created the LoginLookup one, and it served to work when I access it in my website, but Tomcat seems to be complaining about it for some reason.

[Nathaniel Stoddard]

You need to define all your servlets before doing the servlet-mappings.

[William Brogden]

Its a good idea to download the servlet specification from here.
To get the exact details on the required order of elements in web.xml.

[Nathaniel Stoddard]

Also, validating the XML document with a validating parser is a good idea so you don't have to wait until you deploy your application before you find out that it's all messed up. (I develop in JBuilder, where it's a simple context menu click or two.) Most, if not all, XML editors allow you to validate the document against some DTD these days.

[Stephen Huey]

I moved the following up above all the servlet mappings and it's still complaining:

<servlet>
<servlet-name>LoginLookup</servlet-name>
<servlet-class>wwxchange.LoginLookup</servlet-class>
</servlet>

<servlet>
<servlet-name>Controller</servlet-name>
<servlet-class>wwxchange.Controller</servlet-class>
</servlet>

[Nathaniel Stoddard]

How is it complaining? Have you validated your entire web.xml file and confirmed that it is well-formed?