[Spring] cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'mvc:message- converters'.

<mvc:annotation-driven>   

 </mvc:annotation-driven>

<mvc:message-converters>

<!-- json 메세지 컨버터 -->

<bean

class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>application/json; charset=UTF-8</value>

</list>

</property>

</bean>

</mvc:message-converters>

메세지 컨버터를 annotation-driven 안에 넣지 않아서 발생한 에러

<mvc:annotation-driven>  

<mvc:message-converters>

<!-- json 메세지 컨버터 -->

<bean

class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>application/json; charset=UTF-8</value>

</list>

</property>

</bean>

   </mvc:message-converters> 

 </mvc:annotation-driven>

넣어주니 해결