weld-servlet dependencies cannot be resolved to a type

oioi, alguém ajuda? parece que a dependência weld-servlet não estã reconhecendo algumas notações do CDI...

Usei as versões de dependências iguais as do treinamento.

Erros: Disposes cannot be resolved to a type Inject cannot be resolved to a type Named cannot be resolved to a type Produces cannot be resolved to a type RequestScoped cannot be resolved to a type SessionScoped cannot be resolved to a type The import javax.enterprise.context.RequestScoped cannot be resolvedThe method afterPhase(PhaseEvent) of type Autorizador must override a superclass method The method beforePhase(PhaseEvent) of type Autorizador must override a superclass method

        <dependency>
            <groupId>org.jboss.weld.servlet</groupId>
            <artifactId>weld-servlet</artifactId>
            <version>2.3.3.Final</version>
        </dependency>

Achei que pudese ser a falta dos jars abaixo mas não é: hibernate-validator-4.3.0.Final.jar jboss-transaction-api_1.1_spec-1.0.0.Final.jar

Estou usando Java8 e Tomcat8.5.