我无法解决maven建筑错误失败

Question

当我使用maven构建我的项目时出现错误.请帮忙!谢谢您的帮助

无法执行目标org.apache.maven.plugins:maven-assembly-plugin:2.2.1:项目newstart-app-ithelp上的程序集(make-assembly):目标org.apache.maven.plugins的执行make-assembly: maven-assembly-plugin:2.2.1:程序集失败:对于工件{null:null:null:jar}:groupId不能为空.原因:目标org.apache.maven.plugins的执行make-assembly:maven-assembly-plugin:2.2.1:程序集失败:对于工件{null:null:null:jar}:groupId不能为空.堆栈跟踪:org.apache.maven.lifecycle.LifecycleExecutionException:无法执行目标org.apache.maven.plugins:maven-assembly-plugin:2.2.1:项目newstart-app-ithelp上的程序集(make-assembly):执行目标org.apache.maven.plugins的make-assembly:maven-assembly-plugin:2.2.1:程序集失败:对于工件{null:null:null:jar}:groupId不能为空.

<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">
<parent>
    <groupId>com.feinno.app</groupId>
    <artifactId>root-pom</artifactId>
    <version>1.0.0</version>
</parent>
<modelVersion>4.0.0</modelVersion>

<groupId>newstart.app</groupId>
<artifactId>newstart-app-ithelp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>newstart-app-ithelp</name>
<url>http://maven.apache.org</url>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>2.2.1</version>
            <configuration>
                <appendAssemblyId>false</appendAssemblyId>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
                <archive>
                    <manifest>
                        <mainClass>com.newstart.app.ithelp.ITHelpBean</mainClass>
                    </manifest>
                </archive>
            </configuration>
            <executions>
                <execution>
                    <id>make-assembly</id>
                    <phase>package</phase>
                    <goals>
                        <goal>assembly</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <verbose>true</verbose>
                <fork>true</fork>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <skip>true</skip>
            </configuration>
        </plugin>
    </plugins>
</build>
<dependencies>
    <dependency>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <version>2.4.3</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.1.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpmime</artifactId>
        <version>4.1.2</version>
    </dependency>
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.0</version>
    </dependency>
    <dependency>
        <groupId>com.feinno.app</groupId>
        <artifactId>feinno-app-common</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>2.2.0</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.24</version>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>0.2.9</version>
    </dependency>
    <dependency>
        <groupId>spring-aop</groupId>
        <artifactId>spring-aop</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-beans</groupId>
        <artifactId>spring-beans</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-context</groupId>
        <artifactId>spring-context</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-core</groupId>
        <artifactId>spring-core</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-jdbc</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-tx</groupId>
        <artifactId>spring-tx</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>spring-expression</groupId>
        <artifactId>spring-expression</artifactId>
        <version>3.2.3</version>
    </dependency>
    <dependency>
        <groupId>IKAnalyzer</groupId>
        <artifactId>IKAnalyzer</artifactId>
        <version>6</version>
    </dependency>
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-core</artifactId>
        <version>3.6.0</version>
    </dependency>
    <dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache-core</artifactId>
        <version>2.6.0</version>
    </dependency>
    <dependency>
        <groupId>linq4j</groupId>
        <artifactId>linq4j</artifactId>
        <version>1.0</version>
    </dependency>
</dependencies>
<distributionManagement>
    <snapshotRepository>
        <id>snapshots</id>
        <url>http://10.10.208.92:8081/content/repositories/snapshots</url>
    </snapshotRepository>
</distributionManagement>

Answer 1

我已通过删除本地.m2/repository文件夹修复此问题.构建现在成功.

Answer 2

我的有一个不同的解决方案.我有一个POM是有一个<dependencyManagement>对JAR条目没有任何<version>,和它有一个<dependencies>对JAR条目有一个<version>.另外,父POM有一个<dependencyManagement>条目与相同<version>.显然这是混乱的Maven(3.3).构建工作正常,但包装没有.

修复:删除<dependencyManagement>子POM 中的条目,并<version>从<dependencies>子POM中的条目中删除.

在代码中,这是破碎的情况:

Parent pom.xml:
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>${httpclient.version}</version>
        </dependency>
    </dependencies>
</dependencyManagement>

Child pom.xml:
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
    </dependencies>
</dependencyManagement>
...
<dependencies>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>${httpclient.version}</version>
    </dependency>
</dependencies>

修复后:父POM是一样的,孩子pom就是这样

<dependencies>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
    </dependency>
</dependencies>