Dependency of sibling project / module not found

[Markus Jostock <ma...@softwareag.com>]

Dear all

I have a parent project 'proj' which contains two sub projects: 'core' 
and 'tools'.

core depends on tools. tools is built first. core and tools have a child 
relationship to the parent 'proj'.

When running 'mvn package'  in the parent project,  everything builds 
fine. no problem.

But when running 'mvn package' in the sub-project 'core', maven tries to 
find the tools libraries on the web and refuses to build because it 
cannot find the tools-1.0-SNAPSHOT library:

Missing:
----------
1) my.project:tools:jar:1.0-SNAPSHOT

  Try downloading the file manually from the project website.

  Then, install it using the command:
      mvn install:install-file -DgroupId=my.project -DartifactId=tools 
-Dversion=1.0-SNAPSHOT -Dpackaging=jar -Dfile=/p
ath/to/file

  Alternatively, if you host your own repository you can deploy the file 
there:
      mvn deploy:deploy-file -DgroupId=my.project -DartifactId=tools 
-Dversion=1.0-SNAPSHOT -Dpackaging=jar -Dfile=/pat
h/to/file -Durl=[url] -DrepositoryId=[id]

  Path to dependency:
        1) my.project:core:jar:1.0-SNAPSHOT
        2) my.project:tools:jar:1.0-SNAPSHOT


Could anyone guess what I did wrong with my dependency definitions?

Many thanks!

 Markus

The parent POM:
====================================

<?xml version="1.0" encoding="UTF-8"?>
<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>my.project</groupId>
  <artifactId>proj</artifactId>
  <packaging>pom</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>proj</name>
  <url>http://maven.apache.org</url>


  <modules>
    <module>tools</module>
    <module>core</module>
  </modules>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>my.project</groupId>
        <artifactId>core</artifactId>
        <version>1.0-SNAPSHOT</version>
        <scope>compile</scope>
      </dependency>
      <dependency>
        <groupId>my.project</groupId>
        <artifactId>tools</artifactId>
        <version>1.0-SNAPSHOT</version>
        <scope>compile</scope>
      </dependency>
  </dependencyManagement>

  <dependencies>
    ... some library dependencies ...
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.5</source>
          <target>1.5</target>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>


The 'core' POM:
====================================

<?xml version="1.0" encoding="UTF-8"?>
<project >
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>my.project</groupId>
    <artifactId>proj</artifactId>
    <version>1.0-SNAPSHOT</version>
  </parent>

  <artifactId>core</artifactId>
  <name>core</name>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>

  <dependencies>
    <dependency>
      <groupId>my.project</groupId>
      <artifactId>tools</artifactId>
    </dependency>
  </dependencies>

</project>





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