Used inexisten variable in example

[yhojann-cl]

In https://www.thymeleaf.org/doc/articles/sayhelloextendingthymeleaf5minutes.html says as example:

Using the hello dialect
Using our new dialect is very easy. This being a Spring MVC application, we just have to add it to our templateEngine bean during configuration.

@Bean
public SpringTemplateEngine templateEngine(){
    SpringTemplateEngine templateEngine = new SpringTemplateEngine();
    templateEngine.setEnableSpringELCompiler(true);
    templateEngine.setTemplateResolver(templateResolver());
    templateEngine.addDialect(new HelloDialect());
    return templateEngine;
}

But templateResolver is not defined and it doesn't say how to make it or what it does.

I try reutilize the default templateEngine adding the custom dialect but can not load the SpringTemplateEngine after the bean config or using a autowired annotation.

I solve this recteating all templateResolver again but it is not defined in the documentation example:

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.thymeleaf.spring6.SpringTemplateEngine;
import org.thymeleaf.spring6.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.templatemode.TemplateMode;
import com.example.demo.dialects.MarkdownDialect;

@Configuration
public class ThymeleafConfig {

    @Bean
    public SpringResourceTemplateResolver templateResolver() { // For fix
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setPrefix("classpath:/templates/");
        templateResolver.setSuffix(".html");
        templateResolver.setTemplateMode(TemplateMode.HTML);
        templateResolver.setCharacterEncoding("UTF-8");
        templateResolver.setCacheable(false);
        return templateResolver;
    }

    @Bean
    public SpringTemplateEngine templateEngine() {

        // Template engine for thymeleaf
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();

        // Template engine settings
        templateEngine.setEnableSpringELCompiler(true);
        templateEngine.setTemplateResolver(this.templateResolver());

        // Add custom dialects
        templateEngine.addDialect(new MarkdownDialect());

        // Return modified template engine
        return templateEngine;
    }
}