Maven错误读取程序集:未找到程序集描述符 [英] Maven Error reading assemblies: No assembly descriptors found

问题描述

遵循 本指南 > 我运行了命令

Following this Guide I ran the command

mvn assembly:assembly

并获得

Error reading assemblies: No assembly descriptors found.

我已经看过很多问题，但无济于事.

I've looked at numerous questions on this, but to no avail.

在> 此帖子 中，我创建了一个.xml包含以下内容:

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
    <id>jar-with-dependencies</id>
    <formats>
        <format>jar</format>
    </formats>
    <dependencySets>
        <dependencySet>
            <scope>runtime</scope>
            <unpack>true</unpack>
            <unpackOptions>
                <excludes>
                    <exclude>**/LICENSE*</exclude>
                    <exclude>**/README*</exclude>
                </excludes>
            </unpackOptions>
        </dependencySet>
    </dependencySets>
    <fileSets>
        <fileSet>
            <directory>${project.build.outputDirectory}</directory>
            <outputDirectory>${project.build.outputDirectory}</outputDirectory>
        </fileSet>
        <fileSet>
            <directory>src/main/resources/META-INF/services</directory>
            <outputDirectory>META-INF/services</outputDirectory>
        </fileSet>
    </fileSets>
</assembly>

并将其包含在pom.xml中:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2-beta-5</version>
    <configuration>
      <descriptors>
        <descriptor>jar-with-dependencies.xml</descriptor>
        </descriptors>
    </configuration>
  </plugin>

但仍然没有运气.

您可能会告诉我，我对此很陌生，如何才能使它运行?

I'm pretty new to this as you can probably tell, how can I get this running?

~~ EDIT ~~

在pom.xml我更改了

<descriptor>jar-with-dependencies.xml</descriptor>

收件人

<descriptor>src/main/assembly/jar-with-dependencies.xml</descriptor>

~~编辑2 ~~

pom.xml现在包含以下内容:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2-beta-5</version>
    <executions>
        <execution>
        <id>make-assembly</id>
        <phase>package</phase>
        <goals>
            <goal>single</goal>
        </goals>
        <configuration>
        <descriptors>
            <descriptor>src/main/assembly/jar-with-dependencies.xml</descriptor>
        </descriptors>
        </configuration>
        </execution>
        </executions>
</plugin>

~~编辑3 ~~

此pom.xml现在对我有用:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2-beta-5</version>
    <configuration>
        <descriptors>
            <descriptor>src/main/assembly/jar-with-dependencies.xml</descriptor>
        </descriptors>
        </configuration>
    <executions>
        <execution>
        <id>make-assembly</id>
        <phase>package</phase>
        <goals>
            <goal>single</goal>
        </goals>
        </execution>
    </executions>
</plugin>

推荐答案

要使其正常工作，您需要在src/main/assembly/中创建文件jar-with-dependencies.xml并使用以下XML:

For this to work, you need to create the file jar-with-dependencies.xml in src/main/assembly/ and this XML:

<descriptors>
    <descriptor>src/main/assembly/jar-with-dependencies.xml</descriptor>
</descriptors>

即您需要指定文件的路径，约定是将文件放入src/main/assembly/.

i.e. you need to specify the path to the file and the convention is to put the files into src/main/assembly/.

要使用Maven提供的元素，您需要使用descriptorRef元素(包装在descriptorRefs中).

To use the ones provided by Maven, you need to use the descriptorRef element instead (wrapped in a descriptorRefs).

也不要将描述符放入execution元素内，或者mvn assembly:assembly再也找不到它了(因为您已将它专门移到了mvn package目标上).

Also don't put the descriptor inside of the execution element or mvn assembly:assembly can't find it anymore (since you specifically moved it to the mvn package target).

我本人按照本教程进行操作，有一个重要的点您可能已经错过了:您需要选择正确的原型.在我的情况下，这是5，但是顺序可以更改.因此，请阅读整个列表，并查找字符串openimaj-quickstart-archetype，否则事情将会中断.

I followed the tutorial myself and there is an important point which you might have missed: You need to select the correct archetype. In my case, that was 5 but the order can change. So read the whole list and look for the string openimaj-quickstart-archetype or things will break.

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