Challenge
Monthly Licensing Report generation fails with “ReportingJob task error: System.ArgumentException: An item with the same key has already been added.“ error if there is Veeam Backup Enterprise Manager in the Veeam Cloud Connect infrastructure.
Solution
Make sure you’re running VSPC v5 patch 1 before proceeding with the installation.
Stop "VeeamManagementPortalSvc" service on the VSPC server.
Replace the files below with new versions in the following directory "C:\Program Files\Veeam\Availability Console\ApplicationServer".
Veeam.MBP.LicenseManager.dll
Veeam.Portal.DataManagement.dll
Veeam.MBP.Service.exe
Start "VeeamManagementPortalSvc" service on the VSPC server.
