线程“java.lang.NoClassDefFoundError-1-Thread1”池异常: org/eclipse/aether/spi/connector/Transfer$State

Question

大家好，我正在尝试为android项目生成自动化的Maven构建脚本，我正在使用Maven 3.2.5生成构建，在尝试为示例helloworld项目生成脚本时，我遇到了以下问题

   Exception in thread "pool-1-thread-1"java.lang.NoClassDefFoundError:org/eclipse/aether/spi/connector/Transfer$State
at org.eclipse.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:608)

我正在使用以下脚本来构建

<?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.example.helloworld</groupId>
<artifactId>HelloWorld</artifactId>
<version>0.1.0</version>
<packaging>apk</packaging>

<properties>
    <!-- use UTF-8 for everything -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>

<dependencies>
    <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>android</artifactId>
        <version>4.1.1.4</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v4</artifactId>
        <version>21.0.3</version>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>com.jayway.maven.plugins.android.generation2</groupId>
            <artifactId>android-maven-plugin</artifactId>
            <version>3.9.0-rc.1</version>
            <configuration>
                <sdk>
                    <platform>21</platform>
                </sdk>
                <deleteConflictingFiles>true</deleteConflictingFiles>
                <undeployBeforeDeploy>true</undeployBeforeDeploy>
            </configuration>
            <extensions>true</extensions>
        </plugin>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
    </plugins>
</build>

​

尝试更改并在google中搜索未找到解决方案，请帮助我

Answer 1

看起来android- maven -plugin和maven 3.2.5及更高版本之间存在兼容性问题。

对于我来说，它在3.2.3上工作，当我使用3.2.5和3.3.1时，它会失败，并出现NoClassDefFoundError异常

尝试从http://archive.apache.org/dist/maven/maven-3/3.2.3/的归档文件中下载较旧的maven版本

编辑

此问题已在android-maven-plugin的后续版本(testet with 4.1.1)中修复。该插件已移至github，并重新定位到新的groupId。

  <plugin>
    <groupId>com.simpligility.maven.plugins</groupId>
    <artifactId>android-maven-plugin</artifactId>
    <version>4.1.1</version>
  </plugin>

新项目位置：https://github.com/simpligility/android-maven-plugin/

Answer 2

maven 3.2和3.3存在一些兼容性问题。试试这个：

brew install homebrew/versions/maven31
sudo ln -s /usr/local/Cellar/maven31/3.1.1 /usr/local/Cellar/maven/
brew switch maven 3.1.1