Solr doesn't start automatically
<pre><code> solr-5.4.0 version
</code></pre>

<p>My Java version</p>

<pre><code>java -version
java version "1.7.0_91"
OpenJDK Runtime Environment (IcedTea 2.6.3) (7u91-2.6.3-0ubuntu0.14.04.1)
OpenJDK 64-Bit Server VM (build 24.91-b01, mixed mode)
</code></pre>

<p>I did all steps finally am getting this error</p>

<pre><code>sudo service solr status
</code></pre>

<p>Found 1 Solr nodes: </p>

<pre><code>Solr process 6003 from /var/solr/solr-8983.pid not found.
</code></pre>

<p>How to fix this error?</p>