背景：就是需要用到子母页的结构但是我原本是写.net的，这个不大会，然后现在是报了个错：
Reason: Failed to convert property value of type 'java.lang.String' to required type 'java.util.Map' for property 'settings'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'java.util.Map' for property 'settings': no matching editors or conversion strategy found

就想请问下是什么原因

源码：
pom.xml:
<dependency>
<groupId>com.googlecode.rapid-framework</groupId>
<artifactId>rapid-core</artifactId>
<version>4.0.5</version>
</dependency>
<!-- lang包 缺少的话可能会报错 -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>

配置类：
import cn.org.rapid_framework.freemarker.directive.BlockDirective;
import cn.org.rapid_framework.freemarker.directive.ExtendsDirective;
import cn.org.rapid_framework.freemarker.directive.OverrideDirective;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;

@Configuration
public class FrameworkConfig {
@Autowired
freemarker.template.Configuration configuration;
@PostConstruct
public void setSharedVariable(){
configuration.setSharedVariable("block", new BlockDirective());
configuration.setSharedVariable("override", new OverrideDirective());
configuration.setSharedVariable("extends", new ExtendsDirective());
}
}

appliction.properties:
spring.freemarker.template-loader-path=classpath:/templates/
spring.freemarker.charset=utf-8
spring.freemarker.cache=false
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.expose-spring-macro-helpers=true
spring.freemarker.suffix=.ftl