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I have a library of JavaScript in dependency globalmentor-core.jar, and I use maven-dependency in another project to transfer the JavaScript to a web directory:

 <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <id>unpack</id> <phase>process-resources</phase> <goals> <goal>unpack</goal> </goals> <configuration> <artifactItems> <artifactItem> <groupId>com.globalmentor</groupId> <artifactId>globalmentor-core</artifactId> <overWrite>true</overWrite> <outputDirectory>${project.build.outputDirectory}/com/guiseframework/assets/javascript</outputDirectory> <includes>**/*.js</includes> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin>

That works wonderfully on the command-line. In Eclipse using m2eclipse I get:

2/4/11 5:26:53 AM PST: Build errors for guiseframework; org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.1:unpack (unpack) on project guiseframework: Error unpacking file: R:\java\trunk\globalmentor-core\target\classes to: R:\java\trunk\guiseframework\target\classes\com\guiseframework\assets\javascript org.codehaus.plexus.archiver.ArchiverException: The source must not be a directory.

The closest thing I can find is http://jira.codehaus.org/browse/MDEP-187, where someone claims they will "provide trivial patch shortly. That was in 2008.

Is there a fix for this, or am I stuck?

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  • There's another still unresolved bug: http://jira.codehaus.org/browse/MDEP-98 Commented Jul 12, 2011 at 23:16
  • Please everybody: vote on the bug such that the maven people finally resolve this! By the way: this also happens in some circumstances on the maven command line. Commented Oct 5, 2011 at 10:06

1 Answer 1

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I've found a solution/workaround for this problem.

My configuration: Windows XP SP 3, Maven 3, JDK 1.6.0_24, Maven repository under "C:\Documents and Settings\<YOUR_ID>\.m2" folder.

Follow these steps:

  1. Run ‘dir c:\ /X’ and look for the string with ~ in it

    08/01/2011 04:53 PM DOCUME~1          Documents and Settings

  2. Open your settings.xml file and under the <settings> tag add a localRepository tag:
    <localRepository>C:/DOCUME~1/<YOUR_ID>/.m2/repository<\localRepository>

This should make the plugin work. Apparently, maven-dependency-plugin (up to version 2.3) has problems with paths including spaces in it.

Regards,
Cutberto.

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Your workaround doesn't apply in Win7 where .m2 is under c:\users[username]\.m2\repository

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