title: Kafka installation - classpath is empty
body: <p>I try to install kafka on my windows(8), and it's not work.</p>
  
  <p>I download kafka and extract it on c:\kafka after it i change the server.properties and zookeeper.properties.</p>
  
  <p>I set in those file the logs path.</p>
  
  <p>I even try to download an tun zookeper outside the kafka install but the zookeeper runing and the kafka not.</p>
  
  <p>the Error that i get when i try to run this command is:</p>
  
  <pre><code>bin\windows\zookeeper-server-start.bat .config\zookeeper.properties
  </code></pre>
  
  <p>and this is the result:</p>
  
  <pre><code>Classpath is empty. Please build the project first e.g. by running 'gradlew jarAll'
  </code></pre>