Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.6:war (default-war) on project ca

Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.6:war (default-war) on project cas: Unable to parse configuration of mojo org.apache.maven.plugins:maven-war-plugin:2.6:war for parameter version: Cannot find 'version' in class org.apache.maven.plugin.war.Overlay -> [Help 1]

cas   maven打包时错误代码 找不到被覆盖overlay的version版本号

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 <profiles>
    <profile>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <id>default</id>
        <dependencies>
            <dependency>
                <groupId>org.apereo.cas</groupId>
                <artifactId>cas-server-webapp${app.server}</artifactId>
                <version>${cas.version}</version>
                <type>war</type>
                <scope>runtime</scope>
            </dependency>
        </dependencies>
    </profile>
    </profiles>

全部为pom为：

<?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>com.hugeo</groupId>
    <artifactId>cas</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>cas</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>

        <cas.version>5.2.3</cas.version>
        <app.server>-tomcat</app.server>

        <mainClassName>org.springframework.boot.loader.WarLauncher</mainClassName>
        <isExecutable>false</isExecutable>
        <manifestFileToUse>
            ${project.build.directory}/war/work/org.apereo.cas/cas-server-webapp${app.server}/META-INF/MANIFEST.MF
        </manifestFileToUse>

        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <springboot.version>2.0.0.RELEASE</springboot.version>
    </properties>

    <!--中央仓库-->
    <repositories>
        <repository>
            <id>public</id>
            <name>aliyun nexus</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>public</id>
            <name>aliyun nexus</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${springboot.version}</version>
                <configuration>
                    <mainClass>${mainClassName}</mainClass>
                    <addResources>true</addResources>
                    <executable>${isExecutable}</executable>
                    <layout>WAR</layout>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.6</version>
                <configuration>
                    <warName>cas</warName>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                    <recompressZippedFiles>false</recompressZippedFiles>
                    <archive>
                        <compress>false</compress>
                        <manifestFile>${manifestFileToUse}</manifestFile>
                    </archive>
                    <overlays>
                        <overlay>
                            <groupId>org.apereo.cas</groupId>
                            <artifactId>cas-server-webapp${app.server}</artifactId>
                            <!--<version>${cas.version}</version>-->
                        </overlay>
                    </overlays>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
            </plugin>
        </plugins>
        <finalName>cas</finalName>
    </build>

    <dependencies>
        <!-- 和maven-war-plugin里配置的overlays配合使用 -->
        <dependency>
            <groupId>org.apereo.cas</groupId>
            <artifactId>cas-server-webapp${app.server}</artifactId>
            <version>${cas.version}</version>
            <type>war</type>
            <scope>runtime</scope>
        </dependency>
        <!-- 自己需要的jar包，我这里用到了查库验证身份，所以引入了mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.44</version>
        </dependency>
        <!-- restful -->
        <dependency>
            <groupId>org.apereo.cas</groupId>
            <artifactId>cas-server-support-rest</artifactId>
            <version>${cas.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apereo.cas</groupId>
            <artifactId>cas-server-core-authentication</artifactId>
            <version>${cas.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apereo.cas</groupId>
            <artifactId>cas-server-core-configuration</artifactId>
            <version>${cas.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apereo.cas</groupId>
            <artifactId>cas-server-core-webflow</artifactId>
            <version>${cas.version}</version>
            <!--<scope>runtime</scope>-->
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <!--<scope>provided</scope>-->
        </dependency>
    </dependencies>


    <profiles>
    <profile>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <id>default</id>
        <dependencies>
            <dependency>
                <groupId>org.apereo.cas</groupId>
                <artifactId>cas-server-webapp${app.server}</artifactId>
                <version>${cas.version}</version>
                <type>war</type>
                <scope>runtime</scope>
            </dependency>
        </dependencies>
    </profile>
    </profiles>

</project>