装配WAR时出错：需要webxml属性

Question

我正在使用Maven作为我的Web应用程序，但是当我运行mvn clean install时，我得到了

 ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.144 s
[INFO] Finished at: 2016-05-05T20:19:13+03:00
[INFO] Final Memory: 25M/271M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project HW-web-parent: Error assembling WA
R: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]

我的主要专家看起来像这样：

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>shop.tryHW</groupId>
    <artifactId>tryHW-parent</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>pom</packaging>
    <modules>
        <module>tryHW-core</module>
        <module>tryHW-web</module>
    </modules>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>

                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <properties>
        <!-- Logging -->
        <slf4j.version>1.7.21</slf4j.version>
        <log4j.version>2.5</log4j.version>

        <!-- Testing -->
        <junit.version>4.11</junit.version>
        <mockito.version>1.9.5</mockito.version>
        <hamcrest-all.version>1.3</hamcrest-all.version>
        <dbunit.version>2.5.0</dbunit.version>

    </properties>

    <dependencyManagement>
        <dependencies>

            <!-- ======= -->
            <!-- Logging -->
            <!-- ======= -->
            <!-- SLF4J -->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <!-- Apache Log4j 2 -->
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-slf4j-impl</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-1.2-api</artifactId>
                <version>${log4j.version}</version>
            </dependency>

            <!-- ======= -->
            <!-- Testing -->
            <!-- ======= -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <artifactId>hamcrest-core</artifactId>
                        <groupId>org.hamcrest</groupId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>org.mockito</groupId>
                <artifactId>mockito-all</artifactId>
                <version>${mockito.version}</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.hamcrest</groupId>
                <artifactId>hamcrest-all</artifactId>
                <version>${hamcrest-all.version}</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.dbunit</groupId>
                <artifactId>dbunit</artifactId>
                <version>${dbunit.version}</version>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <artifactId>junit</artifactId>
                        <groupId>junit</groupId>
                    </exclusion>
                </exclusions>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- ======= -->
        <!-- Logging -->
        <!-- ======= -->
        <!-- SLF4J -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
        </dependency>
        <!-- Apache Log4j 2 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
        </dependency>

        <!-- ======= -->
        <!-- Testing -->
        <!-- ======= -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
        </dependency>
    </dependencies> 
</project>

我在网上查看了解决方案，他们说要添加配置不足，但它不起作用。有任何想法吗？我已经有一个WEB-INF / web.xml，其路径为tryHW \ tryHW-web \ web \ WEB-INF \ web.xml