I am facing same error while deploying the SSIS project on SSISDB Catalog. but here my SSIS service running under default SSIS Service account "NT SERVICE\MsDtsServer150" and SQL service running under domain accounts.
Should I have to follow all the above steps ?
Error :- Msg 6522, Level 16, State 1, Procedure internal.check_schema_version_internal, Line 0 [Batch Start Line 5]
A .NET Framework error occurred during execution of user-defined routine or aggregate "check_schema_version_internal":
System.ComponentModel.Win32Exception: A required privilege is not held by the client
System.ComponentModel.Win32Exception:
at Microsoft.SqlServer.IntegrationServices.Server.ISServerProcess.StartProcess(Boolean bSuspendThread)
at Microsoft.SqlServer.IntegrationServices.Server.ServerApi.CheckSchemaVersionInternal(SqlInt64 operationId, SqlInt16 use32BitRuntime, SqlString& serverBuild, SqlInt32& schemaVersion, SqlString& schemaBuild, SqlString& assemblyBuild, SqlString& componentVersion, SqlInt16& compatibilityStatus).