Exception when running @ComponentScan in spring

Asked on March 16, 2013
I am getting exception below.
In my application I am trying to use @ComponentScan to scan all beans.
Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [someclass] is defined: expected single bean but found 0:
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:271)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1101)
at com.concretepage.AppTest.main(AppTest.java:12)
Any clue?
In my application I am trying to use @ComponentScan to scan all beans.
Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [someclass] is defined: expected single bean but found 0:
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:271)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1101)
at com.concretepage.AppTest.main(AppTest.java:12)
Any clue?

Replied on March 16, 2013
Check that is your bean class annotated with
@Component. As it is necessary if you are using @ComponentScan.
Find the link
http://www.concretepage.com/spring/example_componentscan_spring.php