Error: "Illegal characters in path" (97233)

When attempting to create a Group Policy Object (GPO), approve an existing GPO  or run a report, an error similar to the following occurs:

"System.ArgumentException: Illegal characters in path.

Server stack trace:
at System.IO.Path.CheckInvalidPathChars(String path)
at System.IO.Path.Combine(String path1, String path2)
at Quest.Avalanche.ClassLibrary.AvalancheUtils.UpdateAdmFiles(IVersionControlManager versionControlManager)
at Quest.Avalanche.VersionControl.Workflow.VersionControlled.CheckIn(String comment)
at Quest.Avalanche.VersionControl.VersionControlManager.CheckIn(Guid controlledObjectId, String comment)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Quest.Avalanche.Interfaces.IVersionControlManager.CheckIn(Guid controlledObjectId, String comment)
at Quest.Avalanche.SnapIn.Actions.RequestApprovalAction.DoNodeBackgroundWork(ActionEventArgs e, Object data)
at Quest.Avalanche.SnapIn.Base.AvalancheListViewAction.DoBackgroundWork(ActionEventArgs e, Object data)"

This issue can be caused by a GPO or ADM conflict,

If this is a GPO conflict look for a GPO GUID that has CNF in the name. There are 4 possible locations where the CNF object could reside:

1. Policies container in AD
2. VCRoot container in AD
3. VersionControl container in AD
4. Policies folder in SYSVOL

1. Open ADSIEdit and connect to the Default Naming Context
2. Expand DC=domain,DC=com | CN=System | CN=Polcies
3. Look for any GUIDs that have CNF in the name
4. Connect to the Configuration context
5. Expand CN=Configuration,DC=domain,DC=com | CN=Services | CN=Quest | CN=QGPM | CN=Wentworth | CN=VCRoot
6. Look for any GUIDs that have CNF in the name
7. Expand CN=Configuration,DC=domain,DC=com | CN=Services | CN=Quest | CN=QGPM | CN=Wentworth | CN=VersionControl
8. Look for any GUIDs that have CNF in the name

If this is an ADM template conflict:

1. Open ADSIEdit and connect to the Configuration context
2. Expand CN=Configuration,DC=domain,DC=com | CN=Services | CN=Quest | CN=QGPM | CN=Wentworth | CN=Templates | CN=ADM

Once the CNF guid has been located delete it from ADSIEdit or SYSVOL and restart the GPOAdmin console