method 'query'有5个参数salesforce

我正在连接salesforce api，我已经将salesforce企业Wsdl导入到我的项目中。

我可以验证用户，但我在查询记录时遇到问题，我不确定我还缺少什么以及如何解决这个

没有重载方法'query'有5个参数

//create SOQL query statement
string query = "SELECT Name, AccountNumber, BillingState FROM Account WHERE BillingState = 'CA'";
enterprise.QueryResult result = queryClient.query(
                header, //sessionheader
                null, //queryoptions
                null, //mruheader
                null, //packageversion
                query);
//cast query results
IEnumerable<enterprise.Account> accountList = result.records.Cast<enterprise.Account>();
//show results
foreach (var account in accountList)
{
      Console.WriteLine(string.Format("Account Name: {0}", account.Name));
}