I am using SQL Server 2008 R2. It is working fine. But recently, I have changed my hosting server and I came to know that they have installed SQL Server 2
I had a similar experience with using SMO via C# with the stack trace:
[1896] System.IndexOutOfRangeException: Index was outside the bounds of the array.
[1896] at Microsoft.SqlServer.Management.Smo.BitStorage.SetBit(Int32 itemIndex, BitIndex bitIndex, Boolean value)
[1896] at Microsoft.SqlServer.Management.Smo.SqlSmoObject.AddObjectPropsFromDataReader(IDataReader reader, Boolean skipIfDirty, Int32 startColIdx, Int32 endColIdx)
[1896] at Microsoft.SqlServer.Management.Smo.SqlSmoObject.ImplInitialize(String[] fields, OrderBy[] orderby)
[1896] at Microsoft.SqlServer.Management.Smo.SqlSmoObject.Initialize(Boolean allProperties)
[1896] at Microsoft.SqlServer.Management.Smo.SqlSmoObject.OnPropertyMissing(String propname, Boolean useDefaultValue)
[1896] at Microsoft.SqlServer.Management.Smo.PropertyCollection.RetrieveProperty(Int32 index, Boolean useDefaultOnMissingValue)
[1896] at Microsoft.SqlServer.Management.Smo.PropertyCollection.GetValueWithNullReplacement(String propertyName, Boolean throwOnNullValue, Boolean useDefaultOnMissingValue)
[1896] at Microsoft.SqlServer.Management.Smo.Information.get_MasterDBPath()
It turned out my versions of the CLR/NCLI/SMO were 10.50.1600.1. Upgrading them to 10.53.6000.34 fixed it - thus allowing the 2008R2 SMO to do many things with 2012 and 2014 servers.
Get them from the feature pack
https://www.microsoft.com/en-gb/download/details.aspx?id=44272