We are receiving the below error while trying to install Exchange 2013 CU5 on our Exchange Server running on Exchange 2013 CU2.
[07/26/2014 18:35:03.0515] [0] Setup will run the task 'Start-PreConfiguration'
[07/26/2014 18:35:03.0531] [1] Setup launched task 'Start-PreConfiguration -Mode 'BuildToBuildUpgrade' -Roles 'LanguagePacks','BridgeheadRole','FrontendTransportRole','ClientAccessRole','UnifiedMessagingRole','MailboxRole','AdminToolsRole','CafeRole''
[07/26/2014 18:35:03.0594] [1] Finished loading screen PreCheckPage.
[07/26/2014 18:35:06.0266] [1] [ERROR] Object reference not set to an instance of an object.
[07/26/2014 18:35:06.0266] [1] [WARNING] An unexpected error has occurred and a Watson dump is being generated: Object reference not set to an instance of an object.
[07/26/2014 18:45:32.0541] [0] CurrentResult setupbase.maincore:396: 0
[07/26/2014 18:45:32.0541] [0] End of Setup
Thanks,
Biswa
