Removing Management Pack Dependencies for OpsLogix Ping

Our OpsLogix Ping Management Pack randomly stopped working and the error is posted below (anyone seen this before?). So, the plan is to remove this Management Pack and re-add, however, we must remove the dependencies first.

We’ve taken care of most of them but the Management Pack that contains information related to our Distributed Applications has 100+ references for OpsLogix because we use many Distributed Apps that each refer to a OpsLogix Ping monitored device. Instead of editing out the many references, should we just delete that Management Pack altogether, re-install the Ping Management Pack, and import the backup of the Management Pack again?

We use Distributed Applications for one of our most important dashboards, so we want to ensure that we won’t lose anything by deleting out the associated Management Pack temporarily.

Here is the error we get when trying to remove devices from OpsLogix Ping Dashboard

OpsLogixError.jpg

Here is the error and I had seen another post about this with no resolution

https://social.technet.microsoft.com/Forums/de-DE/88b80dae-5d20-4c9b-ae9c-434f2b520420/opslogix-not-able-to-remove-the-servers-from-ping-check-monitoring?forum=operationsmanagergeneral

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Ping.UI.Services.ScomService.RemoveTargetInstance(String hostName, String targetName, String targetDisplayName)
at Ping.UI.Models.HostModel.RemoveTargets(IEnumerable`1 targets)
at Ping.UI.Presenters.TargetHostPresenter._targetSourceHostView_RemoveTargetsEvent(Object sender, RemoveTargetsEventArgs e)
at Ping.UI.UserControls.TargetHostControl.removeTargetHostButton_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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Microsoft.EnterpriseManagement.Modules.Apm.AlertAttachment.Modules
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Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.Modules.ModuleDebug
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.Modules.Apm.TfsWISync.ComponentTasks
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.HealthService
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.Mom.Modules.DataTypes
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10184.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.Mom.Modules.DataTypes.DLL

WPF.OpsLogix.IMP.Base.UI
Assembly Version: 3.0.0.42
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.Monitoring.SyntheticTransaction.UnitComponents.Wpf
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.Modules.Apm.AlertAttachment.ComponentTasks
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.EnterpriseManagement.Monitoring.ServiceLevel.Components
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.Windows.Server.2016.Components.WPF
Assembly Version: 10.0.19.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.SystemCenter.Visualization.Component.Library.WPF
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Accessibility
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll

Microsoft.SQLServer.Visualization.Library.DataObjectContext.Wpf
Assembly Version: 7.0.7.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

System.Windows.Interactivity
Assembly Version: 4.0.0.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.SQLServer.Visualization.Library.Entities.Wpf
Assembly Version: 7.0.7.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Microsoft.SQLServer.Visualization.Library.Controls.Wpf
Assembly Version: 7.0.7.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

Ping.UI
Assembly Version: 1.0.0.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/Microsoft.EnterpriseManagement.Presentation.Core.dll

System.Xml.Linq
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.Linq.dll

Microsoft.EnterpriseManagement.Monitoring.Components.resources
Assembly Version: 7.0.5000.0
Win32 Version: 7.1.10226.0
CodeBase: file:///C:/Program%20Files/System%20Center%20Operations%20Manager%202012/Console/en/Microsoft.EnterpriseManagement.Monitoring.Components.resources.DLL

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging=“true” />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Silly question, but have you reached out to OpsLogix?

Did you ever get a resolution of this? I am all the sudden having this issue now too.

Hi,

Since our ping MP is free, and it is used in almost every SCOM deployment, we have to prioritize our support for our customers. Having said that, it looks like you are experiencing an issue that is describend in https://www.opslogix.com/kb0005-ping-imp-configuration-dashboard-crashes-due-ablank-ping-target/

1 Like

Can you send the whole error please! Also, “object reference not set to an instance of an object” tends to mean that something (an object) was removed. Did you have a source agent that has now been removed?

I have updated the post with the error message as well as a similar complaint I saw online. No source agent was removed.

I did send them a message about it but received no response. The Management Pack has worked fine for years and works in our other Management Group so it’s hard to say if the issue is necessarily the Management Pack itself.

Did you have any luck with this?

Did you ever get a resolution of this? I am all the sudden having this issue now too.

Yes but it was not pleasant. I had to backup Management Packs, remove dependencies, and remove the OpsLogix Management Pack. I then re-installed the OpsLogix Management Pack, restored Management Packs I had removed, and import devices again with a CSV file. All our Distributed Applications and Groups had to be verified again to get back to how they were before the issue appeared.

Oh man, that doesn’t sound fun. Did they ever tell you what caused it? The only thing that I can think of for me is that I imported a set of servers for a new office and there was a blank line that went into the list, from that moment on, I couldn’t delete.

I never received a response from OpsLogix. I think one of my teammates inadvertently imported or added a device with some non-typical characters and that may have caused it. I still plan on testing this by trying to break it in our development SCOM environment, I just haven’t gotten to it. In the meantime, extra care is taken to ensure there are no special characters or blank spaces when adding devices. It may be a bit sensitive to that kind of thing, so your scenario sounds similar to ours.

Please check as they responded to me https://www.opslogix.com/kb0005-ping-imp-configuration-dashboard-crashes-due-ablank-ping-target/

I was able to run this to isolate the null row causing the issue and then delete it and went to the OpsLogix Console and verified I could delete other items with success.

Select * from basemanagedentity where
Name is null
and DisplayName =’’

UPDATE BaseManagedEntity SET IsDeleted = 1
where Name is null
and DisplayName =’’