Submit a ticketCall us

Training ClassSign up for Network Performance Monitor (NPM) and Scalability instructor-led classes

Attend our instructor-led classes, provided by SolarWinds® Academy, to discuss the more advanced monitoring mechanisms available in NPM as well as how to tune your equipment to optimize its polling capabilities. NPM classes offered:
NPM Custom Monitoring and Polling
Orion Platform Scalability

Reserve your seat.

Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Manage Dependencies page is blank

Manage Dependencies page is blank

Updated October 23, 3018

Overview

The Manage Dependencies page does not display any dependencies, even though the Group By column indicates that dependencies exist.

When you check the OrionWeb.log file, the log displays the following errors:

ERROR SolarWinds.Orion.Core.Common.SwisEntityHelper - (null)  
Unknown entity 'UNKNOWN'
ERROR DependenciesTree - (null)  Exception in BuildTree: System.Exception: 
Unknown entity 'UNKNOWN'

Environment

  • NPM 12.x

Cause 

Bad data in the Dependencies database table.

Resolution

  1. Back up your database. 
  2. Open the Database Manager.
  3. Connect to the NPM database and query the Dependencies table
  4. Locate entries where Category is UNKNOWN or ParentEntityType is zero or negative.
  5. Delete the entries found in step 4.
  6. Reload the Manage Dependencies page.

 

 

 

Last modified

Tags

Classifications

Public