MySQL提供程序的子音速崩溃

我正在使用亚音速3.0.0.3和ActiveRecord,运行在一个MySQL数据库上。我发现这很管用:

// Approach 1
var db = new testDB(); 
db.Insert.Into<company>(c => c.name) .Values("Acme") .Execute(); 

但这次崩溃:

// Approach 2
company c = new company(); 
c.name = "Acme"; 
c.Save(); 

崩溃不是立即发生的,而是在关机时发生的:

One of the background threads threw exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at MySql.Data.MySqlClient.NativeDriver.FetchDataRow(Int32 statementId, Int32 columns)
   at MySql.Data.MySqlClient.Driver.FetchDataRow(Int32 statementId, Int32 columns)
   at MySql.Data.MySqlClient.Driver.SkipDataRow()
   at MySql.Data.MySqlClient.ResultSet.Close()
   at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
   at MySql.Data.MySqlClient.MySqlDataReader.Close()
   at MySql.Data.MySqlClient.MySqlConnection.Close()
   at MySql.Data.MySqlClient.MySqlConnection.Dispose(Boolean disposing)
   at System.ComponentModel.Component.Finalize()
Test host process exited unexpectedly.

考虑到使用方法1,我不知道如何获取新插入的记录ID,而使用方法2,它会崩溃,我有点卡住了……

有什么想法吗?