Internal Error & Unauthorized Operation when creating a Managed Property in SP 2016

Question

When trying to create a new Managed Property I get the following error:

My farm is just used for Search, so I have 2 servers, each having the Search components installed, Central Admin and Distributed Cache.

The SP logs files reports:

SearchServiceApplication::CreateManagedProperty--Exception: System.UnauthorizedAccessException: Attempted to perform an unauthorized operation. at Microsoft.Office.Server.Search.Administration.SearchObjectAccessChecker.CheckParentFarmRights(IInternalSearchServiceApplication app, SearchObjectLevel level, SearchObjectRight right, Boolean throwException) at Microsoft.Office.Server.Search.Administration.Schema.SecurityCheck(SearchObjectRight right) at Microsoft.Office.Server.Search.Administration.ManagedPropertyCollection.CreateWithPid(String name, ManagedDataType managedType, Int32 pid) at Microsoft.Office.Server.Search.Administration.ManagedPropertyCollection.Create(String name, ManagedDataType managedType) at Microsoft.Office.Server.Search.Administration.SchemaOperations... 8824ee9d-e134-40f2-01f9-574c85e1a49b

05/03/2017 16:58:46.02* w3wp.exe (0x23CC)
0x2998 SharePoint Server Search Administration
afnqn High ....CreateManagedProperty(String managedPropertyName, ManagedDataType type, SearchObjectOwner owner) at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.CreateManagedProperty(String managedPropertyName, ManagedDataType type, SearchObjectOwner owner) 8824ee9d-e134-40f2-01f9-574c85e1a49b

Answer 1

I encountered the same problem with my account which is a domain admin and solved by

• Adding the account to the Local Administrator's Group!