错误：'operator＆gt;＆gt;'的模糊重载在'std :: cin＆gt;＆gt; qualifyForDiscount“|

Question

@Autowired
public void configureGlobal(final AuthenticationManagerBuilder auth, final AuthenticationProvider provider) throws Exception {

        auth
                .eraseCredentials(false)
                .authenticationProvider(provider)
                .authenticationProvider(jwtConfig.jwtAuthenticationProvider());
}


@Bean("myUserDetailService")
public UserDetailsService userDetailsService() {
    final LdapUserDetailsService ldapUserDetailsService = new LdapUserDetailsService(ldapUserSearch(), ldapAuthoritiesPopulator());
    return new CompositeUserDetailsService(Arrays.asList(technicalUserDetailsService(), ldapUserDetailsService));
}

@Bean("myUserDetailService")
@Profile("DEV")
public UserDetailsService devUserDetailsService() {
 useAnonymous = true;
        InMemoryUserDetailsManagerBuilder b = new InMemoryUserDetailsManagerBuilder()
                .withUser("guest").password("guest").authorities(ROLE_USER, ROLE_ADMIN).and();

        return new CompositeUserDetailsService(Arrays.asList(b.build(),
                technicalUserDetailsService()));

}
@Bean("myAuthProvider")
public AuthenticationProvider ldapAuthenticationProvider() {
    final BindAuthenticator ba = new BindAuthenticator((BaseLdapPathContextSource) contextSource());
    ba.setUserSearch(ldapUserSearch());
    return new LdapAuthenticationProvider(ba, ldapAuthoritiesPopulator());
}

@Bean("myAuthProvider")
@Profile("DEV")
public AuthenticationProvider devAuthenticationProvider() {

   //find a way to return userdetails here

}

有一个错误，我无法弄清楚如何解决它。

  

错误：'operator＆gt;＆gt;'的模糊重载在'std :: cin＆gt;＆gt; qualifyForDiscount'

请帮帮我。