WebSecurityConfigurerAdapter.class] não pode ser aberto porque não existe

depois de criar o aplicativo Spring, tenho este problema:

  .../WebSecurityConfigurerAdapter.class] cannot be opened because it does not exist at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181)

Meu pom.xml

<properties>
    <spring.version>4.3.0.RELEASE</spring.version>
    <springsecurity.version>4.2.3.RELEASE</springsecurity.version>
    <!--<springsecurity.version>5.0.0.RELEASE</springsecurity.version>-->
</properties>


<dependencies>


    <!--spring security web and config-->

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-web</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-core</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

Classe SecurityConfig:

    @Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser("john").password("secret123").roles("EMPLOYEE");
        auth.inMemoryAuthentication().withUser("mary").password("secret123").roles("MANAGER");
        auth.inMemoryAuthentication().withUser("susan").password("secret123").roles("ADMIN");

    }

}

Inicializador:

public class SecurityWebApplicationInitializer extends AbstractSecurityWebApplicationInitializer {

}

Parece que ele não consegue encontrar o arquivo jar após a compilação. Tentei adicioná-lo a artefatos na Estrutura do projeto no IntelliJ Idea, mas não ajudou.