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POIndependently building Maven submodules
 

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    <p>After being introduced to Maven in my most recent project, I've been experimenting with it for the past couple of weeks.</p> <p>I currently have a multi-module project in my development environment. Project "A" and Project "B" are child modules of Project "root", with B having a dependency on A.</p> <p>I am aware that I can build B <strong>independently</strong> by using <code>mvn reactor:make...</code> as outlined <a href="http://maven.apache.org/plugins/maven-reactor-plugin/examples.html" rel="nofollow">here</a>. However, I'm curious as to why am I not allowed to build B from inside B's root folder.</p> <p>To illustrate this, I first built A independently by running a <code>clean install</code> from within A's root directory. However, when I tried doing the same action from B's root directory, Maven reported an error as below -</p> <pre><code>Could not find artifact org.divesh.mavenrnd:root:pom:1.0 in central </code></pre> <p>It looks like Maven is not able to resolve the parent's POM file. Any thoughts on why this is happening? From my initial understanding of Maven multi-module projects, the main reason to split a project into sub modules is to share dependencies. This should not, however, prevent me from building a particular module independently from within its folder.</p> <p>Thanks.</p> <p><strong>EDIT</strong></p> <p>Ran an <code>mvn -N clean install</code> to install only the root project's POM in the rep. After this, I was able to successfully build B after building and installing A. There is still one thing I'm not quite clear about - Assuming I've installed the root project's POM in the repository, if I try to build A, does it refer to the parent root POM directly above it or the POM that is installed in the repository?</p>
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