Application.Properties

I'm slowly (too slow) learning Struts. Got an error

Code:

javax.servlet.ServletException: Missing message for key "userRegistration.firstName" org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781) org.apache.jsp.userRegistration_jsp._jspService(userRegistration_jsp.java:110) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)

I'm sure I don't know the error means but I'm guessing it's on application.properties file. I have

HTML Code:

<td><bean:message key="userRegistration.firstName"/></td> <td><html:text property="firstName"/></td>

and got that error but it doesn't have any error when I trye

HTML Code:

<td><bean:message key="welcome.title"/></td> <td><html:text property="firstName"/></td>

My application.properties looks like this

Code:

# -- standard errors -- errors.header=<UL> errors.prefix=<LI> errors.suffix=</LI> errors.footer=</UL> # -- validator -- errors.invalid={0} is invalid. errors.maxlength={0} can not be greater than {1} characters. errors.minlength={0} can not be less than {1} characters. errors.range={0} is not in the range {1} through {2}. errors.required={0} is required. errors.byte={0} must be an byte. errors.date={0} is not a date. errors.double={0} must be an double. errors.float={0} must be an float. errors.integer={0} must be an integer. errors.long={0} must be an long. errors.short={0} must be an short. errors.creditcard={0} is not a valid credit card number. errors.email={0} is an invalid e-mail address. # -- other -- errors.cancel=Operation cancelled. errors.detail={0} errors.general=The process did not complete. Details should follow. errors.token=Request could not be completed. Operation is not in sequence. # -- welcome -- welcome.title=Struts Blank Application welcome.heading=Welcome! welcome.message=To get started on your own application, copy the struts-blank.war to a new WAR file using the name for your application. Place it in your container's "webapp" folder (or equivalent), and let your container auto-deploy the application. Edit the skeleton configuration files as needed, restart your container, and you are on your way! (You can find the application.properties file with this message in the /WEB-INF/src/java/resources folder.) # -- address -- AddressForm.name=Name AddressForm.address=Address AddressForm.emailAddress=Email address # -- user registration -- userRegistration.firstName=First Name userRegistration.lastName=Last Name userRegistration.userName=User Name userRegistration.password=Password userRegistration.email=Email userRegistration.phone=Phone userRegistration.fax=Fax # -- user registration problem -- userRegistration.firstName.problem=The first name was blank

Help? Thanks a bunch!