cannot convert from 'System.Data.SqlClient.SqlConnection' to 'Microsoft.SqlServer.Management.Common.IRenewableToken'

I am currenty creating SQLWorker class with various methods which excutes various sql commands as part of a wider framework. I have a method which is used to execute a sql scripts. as whon below:

public object ExecuteScript(string sql, ExecutionType executionType = ExecutionType.NonQuery,        int statementTimeout = 1800)    {        using (var connection = new SqlConnection(ConnectionString))        {            connection.InfoMessage += (sender, args) =>                _infoMessageText.AppendLine(args.Message);            var server = new Server(new ServerConnection(connection));            server.ConnectionContext.StatementTimeout = statementTimeout;            switch (executionType)            {                case ExecutionType.NonQuery:                    return server.ConnectionContext.ExecuteNonQuery(sql);                case ExecutionType.Scalar:                    return server.ConnectionContext.ExecuteScalar(sql);                case ExecutionType.Reader:                    return server.ConnectionContext.ExecuteReader(sql);            }        }        return null;    }

I am currently getting the error:Argument 1: cannot convert from 'System.Data.SqlClient.SqlConnection' to 'Microsoft.SqlServer.Management.Common.IRenewableToken'

the particular line is

 var server = new Server(new ServerConnection(connection));

The ServerConnection Class seem to expect a parameter of IRenewableToken but it has constructor that accepts a SqlConnection parameter.

I am not sure what I missing I beleive I have the correct NugetPackages and have the following using statements

using Microsoft.SqlServer.Management.Common;using Microsoft.SqlServer.Management.Smo;

Any ideas on what I am missing here?