无法执行目标org.apache.maven.plugins:maven-compiler-plugin

Question

我正在尝试编译,mvn install但我收到此错误:

[错误]无法执行目标org.apache.maven.plugins:maven-compiler-plugin:2.0.2:项目测试时编译(default-compile):编译失败:编译失败:

pom.xml文件:

<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.mycompany</groupId>
  <artifactId>test</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>test</name>
  <url>http://maven.apache.org</url>

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

<build>
  <plugins>
    <plugin>
      <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <descriptorRefs>
          <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
        <archive>
          <manifest>
            <mainClass>com.mycompany.test.App</mainClass>
          </manifest>
        </archive>
      </configuration>
    </plugin>
  </plugins>
</build>

  <dependencies>
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.25</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

怎么解决？

Answer 1

您的问题很可能<scope>是依赖关系.在IDE内部时,所有范围都将添加到项目的构建路径中.但是,在运行时,mvn只将适当的作用域添加到javac命令的类路径中.例如,如果您有一个类/src/main/java从一个作用域的依赖项中导入一个类<scope>test</scope>,那么IDE将能够构建项目,但是mvn会以您遇到的方式失败.