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I am getting the following error while trying to execute this code.

java.lang.IllegalArgumentException: No ConfigurationProperties annotation found on 'com.app.AggregatorAppAConfiguration'. at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.registerBeanDefinition(EnableConfigurationPropertiesImportSelector.java:117) ~[spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]

Wondering what is done wrong here

   @Component
public class AggregatorApp 
    private static final Logger logger = LoggerFactory.getLogger(AggregatorApp.class);
    public static void main( String[] args )
        logger.info("good");
        SpringApplication app = new SpringApplication(AggregatorAppAConfiguration.class);
        app.setWebEnvironment(false);
        ConfigurableApplicationContext ctx = app.run(args);
        ctx.getBean(AggregatorApp.class).run();
    public void run() {
        aggManager.start();
        System.out.println("Hello World !!");
@Service
public class AggregatorManager {
    public void start() {
        System.out.println("Hello World");
@Configuration
@ComponentScan("com.app.aggregator")
@EnableConfigurationProperties(AggregatorAppAConfiguration.class)
@EnableAutoConfiguration
public class AggregatorAppAConfiguration {
    @Bean
    public AggregatorManager aggregatorManager()
        return new AggregatorManager();
                @chrylis . Removing Enableconfigurationproperties resolved my issue. But now I am getting the following error  "*************************** APPLICATION FAILED TO START *************************** Description: The Bean Validation API is on the classpath but no implementation could be found"
– nnc
                Sep 23, 2016 at 15:43
        
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