pessoal,
estou startando meu servidor tomcat8,porem esta dando o erro abaixo.
GRAVE: Error configuring application listener of class org.jboss.weld.environment.servlet.Listener
java.lang.ClassNotFoundException: org.jboss.weld.environment.servlet.Listener
pom
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>aaaaaaaaaaaaa</groupId>
<artifactId>xxxxx</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>cadunimed Maven Webapp</name>
<properties>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<url>http://maven.apache.org</url>
<dependencies>
<!-- OmniFaces (utilitarios para JSF) -->
<dependency>
<groupId>org.omnifaces</groupId>
<artifactId>omnifaces</artifactId>
<version>1.8.1</version>
<scope>compile</scope>
</dependency>
<!-- Mojarra (Implementação JSF 2) -->
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.faces</artifactId>
<version>2.2.7</version>
<scope>compile</scope>
</dependency>
<!-- PrimeFaces (Biblioteca de componentes) -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>5.0</version>
<scope>compile</scope>
</dependency>
<!-- Weld (implementação do CDI) -->
<dependency>
<groupId>org.jboss.weld.servlet</groupId>
<artifactId>weld-servlet</artifactId>
<version>2.2.1.Final</version>
<scope>compile</scope>
</dependency>
<!-- Núcleo do Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.5.Final</version>
<scope>compile</scope>
</dependency>
<!-- Implementação de EntityManager da JPA -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.5.Final</version>
<scope>compile</scope>
</dependency>
<!-- Driver JDBC do MySQL -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc4</version>
</dependency>
<!-- Hibernate Testing -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-testing</artifactId>
<version>4.3.5.Final</version>
<scope>compile</scope>
</dependency>
<!-- DBUnit -->
<dependency>
<groupId>org.dbunit</groupId>
<artifactId>dbunit</artifactId>
<version>2.4.9</version>
<scope>test</scope>
</dependency>
<!-- Necessário para o DBUnit -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.6</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.5.6</version>
<scope>test</scope>
</dependency>
<!-- jIntegrity -->
<dependency>
<groupId>com.jintegrity</groupId>
<artifactId>jintegrity</artifactId>
<version>0.1.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>xxxxxx</finalName>
</build>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>nota-fiscal-com-cache</display-name>
<listener>
<listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
</listener>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
</web-app>
alguem pode me ajudar??