org.springframework.context.NoSuchMessageException: No message found under code '' for locale 'en'

I am using Spring MVC to develop one application to display error message i done changes in spring-servlet.xml like below

<bean id="messageSource"    class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basenames" value="classpath:resources/ApplicationResources,/>
<property name="fallbackToSystemLocale" value="false"/> 
<property name="defaultEncoding" value="ISO-8859-1" />
</bean>

But still i am getting No message found under code '' for locale 'en' exception, can someone help me in this issue.