title: Not able to install Interpreter in apache zeppelin in HDP 3.x.x?
body: <p>When trying to install pig and other interpreters I am getting a dependency error
  I tried to add the insecure repo of the maven from the GUI of zeppelin but still facing the same error.</p>
  
  <pre><code>http://insecure.repo1.maven.org/maven2/
  </code></pre>
  
  <p>but it seems the support for the above URL has ended.
  <a href="https://central.sonatype.org/articles/2019/Nov/01/announcement-insecurerepo1mavenorg/" rel="nofollow noreferrer">https://central.sonatype.org/articles/2019/Nov/01/announcement-insecurerepo1mavenorg/</a>
  can anyone help me to solve this matter?<br>
  I am not an advanced Linux user but can manage so please give details about where to change the configuration.</p>
  
  <p>also tried to add this property into zeppelin-site.xml but it did not work.</p>
  
  <pre><code>&lt;property&gt;
    &lt;name&gt;zeppelin.interpreter.dep.mvnRepo&lt;/name&gt;
    &lt;value&gt;http://repo1.maven.org/maven2/&lt;/value&gt;
    &lt;description&gt;Remote principal repository for interpreter's additional dependency loading&lt;/description&gt;
  &lt;/property&gt;
  </code></pre>
  
  <p>error is this. </p>
  
  <pre><code>Install pig(org.apache.zeppelin:zeppelin-pig:0.8.0) to /usr/hdp/current/zeppelin-server/interpreter/pig ...                                                                                   
  </code></pre>
  
  <p>org.sonatype.aether.RepositoryException: Cannot fetch dependencies for org.apache.zeppelin:zeppelin-pig:0.8.0<br>
          at org.apache.zeppelin.dep.DependencyResolver.getArtifactsWithDep(DependencyResolver.java:179)<br>
          at org.apache.zeppelin.dep.DependencyResolver.loadFromMvn(DependencyResolver.java:128)<br>
          at org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:76)<br>
          at org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:93)<br>
          at org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:85)<br>
          at org.apache.zeppelin.interpreter.install.InstallInterpreter.install(InstallInterpreter.java:170)<br>
          at org.apache.zeppelin.interpreter.install.InstallInterpreter.installAll(InstallInterpreter.java:120)<br>
          at org.apache.zeppelin.interpreter.install.InstallInterpreter.main(InstallInterpreter.java:270)<br>
  Caused by: java.lang.NullPointerException<br>
          at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:352)<br>
          at org.apache.zeppelin.dep.DependencyResolver.getArtifactsWithDep(DependencyResolver.java:176)<br>
          ... 7 more           </p>