Question

所以pom.xml的顶部看起来像这样：

<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com</groupId>
<artifactId>test</artifactId>
<packaging>war</packaging>
<version>0.0.2-SNAPSHOT</version>
<name>GWT Maven Archetype</name>

但是，在第一行我得到错误：

项目构建错误：版本缺失

后跟与artifactid，groupid和model version相同的词组。我不知道如何解决这个问题，我的一个朋友建议设置我做的JAVA_HOME系统变量并将其设置为我的JDK路径。但没有改变。还有什么我可以尝试解决这个问题吗？我也听过一些考虑系统变量和java.home的东西，但是我并没有真正理解它的区别以及如何解决我的问题。

编辑：这是完整的pom：

<?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/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>com</groupId>
<artifactId>test</artifactId>
<packaging>war</packaging>
<version>0.0.2-SNAPSHOT</version>
<name>GWT Maven Archetype</name>

<properties>
    <!-- Convenience property to set the GWT version -->
    <gwtVersion>2.7.0</gwtVersion>

    <!-- GWT needs at least java 1.6 -->
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>

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

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt</artifactId>
            <version>${gwtVersion}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>com.google.gwt</groupId>
        <artifactId>gwt-servlet</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>com.google.gwt</groupId>
        <artifactId>gwt-user</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.google.gwt</groupId>
        <artifactId>gwt-dev</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.11</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.googlecode.gwtupload</groupId>
        <artifactId>gwtupload</artifactId>
        <version>1.0.3</version>
    </dependency>
    <dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
    <version>2.2.1</version>
    </dependency>
    <dependency>
        <groupId>de.novanic.gwteventservice</groupId>
        <artifactId>gwteventservice</artifactId>
        <version>1.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.easymock</groupId>
        <artifactId>easymock</artifactId>
        <version>3.3.1</version>
    </dependency>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.8.1</version>
    </dependency>


</dependencies>

<build>
    <!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes" 
        update them in DevMode -->
    <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>

    <plugins>

        <!-- GWT Maven Plugin -->
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>gwt-maven-plugin</artifactId>
            <version>2.7.0</version>
            <executions>
                <execution>
                    <goals>
                        <goal>compile</goal>
                        <goal>test</goal>
                        <goal>generateAsync</goal>
                    </goals>
                </execution>
            </executions>
            <!-- Plugin configuration. There are many available options, see gwt-maven-plugin 
                documentation at codehaus.org -->
            <configuration>
                <runTarget>test.html</runTarget>
                <modules>
                    <module>com.test.test</module>
                </modules>
                <copyWebapp>true</copyWebapp>
                <sourceLevel>1.7</sourceLevel>
            </configuration>
        </plugin>
    </plugins>
</build>

这是mvn package -X：

的输出

http://pastebin.com/vJPPdqDQ

（Stackoverflow似乎只将它格式化为几行，我总是要再添加四个空格，我猜这个功能错了我猜）

Answer 1

这似乎是文件结构的错误。您的完整POM粘贴错误，因此我无法检查它，也许您没有正确打开和关闭标签？

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="..." (...)>
...
</project>

编辑： POM现在正确粘贴，实际上你最后没有项目结束标记。

Maven pom.xml问题（项目构建错误＆＃34;版本＆＃34;缺失）

1 个答案: