Tomcat erro. (url errada)

Eu tenho um projeto no eclipse que o tomcat não roda de jeito nenhum. Ta dando erro HTTP Status 404. Já exclui o tomcat e coloquei de novo, já dei update no maven, já dei clean no projeto, já dei ctrl + Shift + s. Mas nada funciona. O mais estranho é que não consta nenhum erro ou warning. Também não da nenhum exceção. Então eu não sei o que fazer.

pom.xml:

<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>br.com.alura.maven</groupId>
  <artifactId>devdojo</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>devdojo Maven Webapp</name>
  <url>http://maven.apache.org</url>

  <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>4.0.0</version>
    <scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.faces/jsf-api -->
<dependency>
        <groupId>com.sun.faces</groupId>
        <artifactId>jsf-api</artifactId>
        <version>2.2.13</version>
        <scope>provided</scope>
    </dependency>

        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>




  </dependencies>

  <build>
  <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
    </plugins>


  </build>
</project>

web.xml:

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">

</web-app>