NINTEX ERROR "AN OBJECT OF THE TYPE MICROSOFT.SHAREPOINT.ADMINISTRATION.SPWEBCONFIGJOBDEFINITION...ALREADY EXISTS"

ISSUE

When performing Nintex Web Application Activation in Nintex Workflow or Activating the Web Application Feature In Nintex Forms the following error occurs:

Object of the type Microsoft.SharePoint.Administration.SPWebConfigJobDefinition named "job-webconfig-modification" already exists under parent Microsoft.Sharepoint.Administration.SPWebService named "".  Rename your object or delete the existing object.



RESOLUTION

Option 1
Restart the SharePoint timer service on all Web and App servers.
Find the job-webconfig-modification timer job running in Central Admin and cancel it.

Option 2
Use the PowerShell scripts below to find and delete the job(s).
SHAREPOINT 2010, SHAREPOINT 2013
DO NOT RUN THE FOLLOWING SCRIPT IN SHAREPOINT2016 FARMS.

Get-SPTimerJob -Identity "job-webconfig-modification" | Format-Table -Property DisplayName, Id, LastRunTime
$job = Get-SPTimerJob -identity "GUID" -WebApplication webApplicationName
$job.Delete()

Reference :

https://support.nintex.com/SharePoint/Forms/Error_%22An_object_of_the_type_Microsoft.SharePoint.Administration.SPWebConfigJobDefinition...already_exists%22