<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:14px">Hi all,</span><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">        I am installing openstack grizzly on redhat 6.4. when I created a instances successfully and tried to access it via vnc, it had no response. the log file xvpvncproxy.log shows an error as below:</div>
<div style="font-family:arial,sans-serif;font-size:14px"><br></div><blockquote style="font-family:arial,sans-serif;font-size:14px;margin:0px 0px 0px 40px;border:none;padding:0px"><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
Host: <a href="http://172.16.2.91:6081/" target="_blank">172.16.2.91:6081</a></blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">Referer: <a href="http://172.16.2.91/dashboard/project/instances/e1f21ec1-7dfd-452b-ab3e-88ecfabc0929/" target="_blank">http://172.16.2.91/dashboard/project/instances/e1f21ec1-7dfd-452b-ab3e-88ecfabc0929/</a></blockquote>
<blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31</blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
2013-07-29 10:35:18.231 3111 INFO nova.XCP VNC Proxy.wsgi.server [-] Traceback (most recent call last):</blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">  File "/usr/lib/python2.6/site-packages/eventlet/wsgi.py", line 393, in handle_one_response</blockquote>
<blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">    for data in result:</blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">TypeError: 'NoneType' object is not iterable</blockquote>
</blockquote><div style="font-family:arial,sans-serif;font-size:14px"><br></div><span style="font-family:arial,sans-serif;font-size:14px">Anyone has encountered the same question before? thanks in advance.</span><br></div>