title: "Missing artifact" errors in pom.xml
body: <p>This is my pom.xml</p>
  
  <pre><code>&lt;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/xsd/maven-4.0.0.xsd"&gt;
  &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
     &lt;groupId&gt;cassandra&lt;/groupId&gt;
     &lt;artifactId&gt;connector&lt;/artifactId&gt;
     &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
     &lt;name&gt;cassandra&lt;/name&gt;
     &lt;description&gt;cassandra connector&lt;/description&gt;
  &lt;dependencies&gt;
  &lt;dependency&gt;
      &lt;groupId&gt;com.datastax.cassandra&lt;/groupId&gt;
      &lt;artifactId&gt;cassandra-driver-core&lt;/artifactId&gt;
      &lt;version&gt;2.1.5&lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;/dependencies&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>Error is shown at <strong>line 12</strong>.
  I have copied and pasted the maven dependency from here.</p>
  
  <p><a href="http://mvnrepository.com/artifact/com.datastax.cassandra/cassandra-driver-core/2.1.5" rel="nofollow">http://mvnrepository.com/artifact/com.datastax.cassandra/cassandra-driver-core/2.1.5</a></p>