title: Couchbase throws GetVBucket is implemented only for VBucketNodeLocator
body: <p>I have started getting this error</p>
  
  <pre><code>GetVBucket is implemented only for VBucketNodeLocator
  </code></pre>
  
  <p>Here is the code:</p>
  
  <pre><code> var couchbaseClient = new CouchbaseClient();
   var isRunning = couchbaseClient.KeyExists("job-started"); //Error here
  </code></pre>
  
  <p>Here is my config:</p>
  
  <pre><code> &lt;couchbase&gt;
      &lt;servers bucket="unittests"&gt;
        &lt;add uri="http://localhost:8091/pools" /&gt;
        &lt;add uri="http://localhost:11211/pools" /&gt;
      &lt;/servers&gt;
    &lt;/couchbase&gt;
  </code></pre>
  
  <p>This has really only started the bucket is a memcache bucket.</p>
  
  <p><strong>Quick Update</strong>
  If I use get instead of exists it works.</p>