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15,773 Views 23 Replies Last post: Jul 30, 2009 3:25 PM by Texiwill RSS
wes_prather Lurker 3 posts since
May 18, 2006
Currently Being Moderated
17. Aug 1, 2007 7:45 AM in response to: senfinger
Re: VM BUG = "Object reference not set to an instance of an object"

I've just stumbled upon the same bug, and have opened a case this morning.

I can poweron the VM in question using an "Administrator" role applied at the Hosts & Clusters level, but not using a limited role which normally can perform this action. 

We applied Patch2 to VC2.01 a couple of weeks ago.

 

Tried restarting the VirtualCenter Service on the VC server, to no avail.

 

I can also connect with VI Client 2.01 (build 40644) DIRECTLY to the ESX node hosting the VM at this time and power it on.

 

Not sure what the deal is yet, but that's why the support is there, eh?

 

Will post results of this inquiry when completed. (or they give up and finally build this on Linux.   -- Where's my Linux Remote Console ?

 

w

VirtualNoitall Virtuoso 1,855 posts since
Feb 17, 2006
Currently Being Moderated
18. Aug 1, 2007 7:52 AM in response to: wes_prather
Re: VM BUG = "Object reference not set to an instance of an object"

For ours we are still working with support.  It looks like the problem only happens on hosts in a cluster ( regardless of if DRS or HA are turned on or off ).  The next step for us is to move one host to a new cluster and see if the problem surfaces there.

VirtualNoitall Virtuoso 1,855 posts since
Feb 17, 2006
Currently Being Moderated
19. Aug 19, 2007 8:33 PM in response to: VirtualNoitall
Re: VM BUG = "Object reference not set to an instance of an object"

Hello,

 

Looks like the issue, for us, was an absence of permissions on the cluster itself.  We typically assign users permissions on virtual machines, or folders of virtual machines, and hosts.  When I added read only to the cluster and set it to not propagate my users were able to start their virtual machines without getting the error.

 

Hope this helps someone else.  Only 2-3 months working with support only to stumble upon this myself

Ken.Cline Champion 5,167 posts since
Jul 7, 2004
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20. Aug 20, 2007 9:08 AM in response to: VirtualNoitall
Re: VM BUG = "Object reference not set to an instance of an object"

Permissioning in VC is one of the most FUBARed things in all of VI-3. The implementation of an authentication/authorization system that coincides with what most VC users understand (i.e. Active Directory) would be Re: VM BUG = "Object reference not set to an instance of an object"a very good thing[/i]

Ken Cline VMware vExpert 2009 VMware Communities User Moderator Blogging at: http://KensVirtualReality.wordpress.com/
davidkemperlee Lurker 2 posts since
Nov 2, 2006
Currently Being Moderated
21. May 14, 2008 6:54 AM in response to: Ken.Cline
Re: VM BUG = "Object reference not set to an instance of an object"

Just a straggling post to this thread...    I also saw this same error message numerous times during my efforts to modify the default permissions.  I was attempting to create a local group on the VC server called VIadmins, and place the appropriate domain user group into that local user group.  I then granted the VIadmins group administrator rights on the datacenters within VC.  The problem came about when i removed the local Windows Administrators group from the VC administrators of the Virtual Infrastructure.

bolsen Hot Shot 177 posts since
Nov 8, 2005
Currently Being Moderated
22. Jul 29, 2009 10:06 AM in response to: davidkemperlee
Re: VM BUG = "Object reference not set to an instance of an object"

FYI - Just had this problem today when trying to right click and remove an invalid VM.  The resolution was to disable the virtual infastructure client plugins.  After I removed the VM from inventory I was able to re-enable the plugins.

Texiwill Guru User Moderators vExpert 11,345 posts since
Jan 13, 2004
Currently Being Moderated
23. Jul 30, 2009 3:25 PM in response to: bolsen
Re: VM BUG = "Object reference not set to an instance of an object"

Hello,

 

Moved to VMware vCenter forum

 


Best regards,

Edward L. Haletky VMware Communities User Moderator, VMware vExpert 2009, url=http://www.virtualizationpractice.comVirtualization Practice Analyst[/url]
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