<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>There are a few bugs with Raw images Mate is working though at the moment (see folsom release notes too):<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="https://bugs.launchpad.net/nova/+bug/1055413">https://bugs.launchpad.net/nova/+bug/1055413</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="https://bugs.launchpad.net/nova/+bug/1055431">https://bugs.launchpad.net/nova/+bug/1055431</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Maybe you are hitting those bugs?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>How new is the version of nova you are running?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Can you give us the glance cli output for your image showing all the metadata (or the horizon view)?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>John<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> openstack-bounces+john.garbutt=citrix.com@lists.launchpad.net [mailto:openstack-bounces+john.garbutt=citrix.com@lists.launchpad.net] <b>On Behalf Of </b>Afef MDHAFFAR<br><b>Sent:</b> Wednesday, October 3, 2012 4:45 PM<br><b>To:</b> openstack@lists.launchpad.net<br><b>Subject:</b> [Openstack] fails to launch instance<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi all,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I am running openstack on Ubuntu 12.04 (with XCP). <o:p></o:p></p></div><div><p class=MsoNormal>I create an ubuntu image (Raw). The creation of the image is successful. However, when I try to launch an instance using this image, I get this error:<o:p></o:p></p></div><div><p class=MsoNormal>-----<o:p></o:p></p></div><div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.virt.xenapi.vm_utils [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Fetched VDIs of type 'os_raw' with UUID '5674bc5f-4649-435f-9be0-b1aeee201a17' from (pid=5918) _fetch_image /opt/stack/nova/nova/virt/xenapi/vm_utils.py:948<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 ERROR nova.utils [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Failed to spawn, rolling back<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Traceback (most recent call last):<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 355, in spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] vdis = create_disks_step(undo_mgr)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 139, in inner<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] rv = f(*args, **kwargs)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 257, in create_disks_step<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_meta, block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 224, in _create_disks<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] block_device_info=block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 427, in get_vdis_for_instance<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_type)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 919, in _create_image<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_id, image_type)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 843, in _create_cached_image<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] root_vdi = vdis['root']<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] KeyError: 'root'<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.utils [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] <o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 ERROR nova.compute.manager [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Instance failed to spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Traceback (most recent call last):<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/compute/manager.py", line 748, in _spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/driver.py", line 179, in spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] admin_password, network_info, block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 369, in spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] undo_mgr.rollback_and_reraise(msg=msg, instance=instance)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/utils.py", line 1315, in rollback_and_reraise<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] self._rollback()<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] self.gen.next()<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 355, in spawn<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] vdis = create_disks_step(undo_mgr)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 139, in inner<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] rv = f(*args, **kwargs)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 257, in create_disks_step<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_meta, block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 224, in _create_disks<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] block_device_info=block_device_info)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 427, in get_vdis_for_instance<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_type)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 919, in _create_image<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] image_id, image_type)<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 843, in _create_cached_image<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] root_vdi = vdis['root']<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] KeyError: 'root'<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 TRACE nova.compute.manager [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] <o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.utils [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] Got semaphore "compute_resources" for method "abort_resource_claim"... from (pid=5918) inner /opt/stack/nova/nova/utils.py:721<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 INFO nova.compute.resource_tracker [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] Aborting claim: [Claim ea4d2039-64c3-4f6f-a866-84db1f0e3693: 512 MB memory, 0 GB disk, 1 VCPUS]<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.compute.manager [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Deallocating network for instance from (pid=5918) _deallocate_network /opt/stack/nova/nova/compute/manager.py:774<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.openstack.common.rpc.amqp [-] Making asynchronous call on network ... from (pid=5918) multicall /opt/stack/nova/nova/openstack/common/rpc/amqp.py:351<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.openstack.common.rpc.amqp [-] MSG_ID is 7850c3859077456fab6d8fc9dc49807c from (pid=5918) multicall /opt/stack/nova/nova/openstack/common/rpc/amqp.py:354<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.openstack.common.rpc.amqp [-] Pool creating new connection from (pid=5918) create /opt/stack/nova/nova/openstack/common/rpc/amqp.py:57<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.compute.manager [-] [instance: 818fee36-6e63-44c9-8edd-4a76ffd8aa6a] Updated the info_cache for instance from (pid=5918) _heal_instance_info_cache /opt/stack/nova/nova/compute/manager.py:2416<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.manager [-] Skipping ComputeManager._run_image_cache_manager_pass, 38 ticks left until next run from (pid=5918) periodic_tasks /opt/stack/nova/nova/manager.py:167<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.manager [-] Running periodic task ComputeManager._reclaim_queued_deletes from (pid=5918) periodic_tasks /opt/stack/nova/nova/manager.py:172<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.compute.manager [-] FLAGS.reclaim_instance_interval <= 0, skipping... from (pid=5918) _reclaim_queued_deletes /opt/stack/nova/nova/compute/manager.py:2752<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.manager [-] Running periodic task ComputeManager._report_driver_status from (pid=5918) periodic_tasks /opt/stack/nova/nova/manager.py:172<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 INFO nova.compute.manager [-] Updating host status<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 DEBUG nova.virt.xenapi.host [-] Updating host stats from (pid=5918) update_status /opt/stack/nova/nova/virt/xenapi/host.py:148<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:15 INFO nova.openstack.common.rpc.common [-] Connected to AMQP server on localhost:5672<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:16 DEBUG nova.manager [-] Running periodic task ComputeManager._poll_unconfirmed_resizes from (pid=5918) periodic_tasks /opt/stack/nova/nova/manager.py:172<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:22 DEBUG nova.compute.manager [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Re-scheduling instance: attempt 1 from (pid=5918) _reschedule /opt/stack/nova/nova/compute/manager.py:580<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:22 DEBUG nova.utils [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] Got semaphore "compute_resources" for method "update_usage"... from (pid=5918) inner /opt/stack/nova/nova/utils.py:721<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:22 DEBUG nova.openstack.common.rpc.amqp [-] Making asynchronous cast on scheduler... from (pid=5918) cast /opt/stack/nova/nova/openstack/common/rpc/amqp.py:376<o:p></o:p></p></div><div><p class=MsoNormal>2012-10-03 15:39:22 ERROR nova.compute.manager [req-ad542f39-2dff-4567-ae6b-9e11b692781a admin demo] [instance: ea4d2039-64c3-4f6f-a866-84db1f0e3693] Build error: ['Traceback (most recent call last):\n', ' File "/opt/stack/nova/nova/compute/manager.py", line 501, in _run_instance\n injected_files, admin_password)\n', ' File "/opt/stack/nova/nova/compute/manager.py", line 748, in _spawn\n block_device_info)\n', ' File "/opt/stack/nova/nova/virt/xenapi/driver.py", line 179, in spawn\n admin_password, network_info, block_device_info)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 369, in spawn\n undo_mgr.rollback_and_reraise(msg=msg, instance=instance)\n', ' File "/opt/stack/nova/nova/utils.py", line 1315, in rollback_and_reraise\n self._rollback()\n', ' File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__\n self.gen.next()\n', ' File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 355, in spawn\n vdis = create_disks_step(undo_mgr)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 139, in inner\n rv = f(*args, **kwargs)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 257, in create_disks_step\n image_meta, block_device_info)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 224, in _create_disks\n block_device_info=block_device_info)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 427, in get_vdis_for_instance\n image_type)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 919, in _create_image\n image_id, image_type)\n', ' File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 843, in _create_cached_image\n root_vdi = vdis[\'root\']\n', "KeyError: 'root'\n"]<o:p></o:p></p></div><div><p class=MsoNormal>------<o:p></o:p></p></div><div><p class=MsoNormal>How can I fix this error?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thank you,<o:p></o:p></p></div><div><p class=MsoNormal>Afef<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><br><br><o:p></o:p></p></div></div></div></body></html>