title: Problem downloading MMLSpark library as a Maven dependency
body: <p>I am completely new to working with maven. I´m trying to download a jar file from microsofts MMLSPARK library using the command of the screenshot:</p>
  <p><a href="https://i.stack.imgur.com/KhSDq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KhSDq.png" alt="enter image description here" /></a></p>
  <p>I´m getting this error ... No clue what's the problem.</p>
  <pre><code>[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.8:get (default-cli) on project standalone-pom: Couldn't download artifact: Missing:
  [ERROR] ----------
  [ERROR] 1) com.microsoft.ml.spark:mmlspark_2.11:jar:1.0.0-rc1
  [ERROR]
  [ERROR]   Try downloading the file manually from the project website.
  [ERROR]
  [ERROR]   Then, install it using the command:
  [ERROR]       mvn install:install-file -DgroupId=com.microsoft.ml.spark -DartifactId=mmlspark_2.11 -Dversion=1.0.0-rc1 -Dpackaging=jar -Dfile=/path/to/file
  [ERROR]
  [ERROR]   Alternatively, if you host your own repository you can deploy the file there:
  [ERROR]       mvn deploy:deploy-file -DgroupId=com.microsoft.ml.spark -DartifactId=mmlspark_2.11 -Dversion=1.0.0-rc1 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]
  [ERROR]
  [ERROR]   Path to dependency:
  [ERROR]         1) org.apache.maven.plugins:maven-downloader-plugin:jar:1.0
  [ERROR]         2) com.microsoft.ml.spark:mmlspark_2.11:jar:1.0.0-rc1
  [ERROR]
  [ERROR] ----------
  [ERROR] 1 required artifact is missing.
  [ERROR]
  [ERROR] for artifact:
  [ERROR]   org.apache.maven.plugins:maven-downloader-plugin:jar:1.0
  [ERROR]
  [ERROR] from the specified remote repositories:
  </code></pre>