c# 在写写数据到csv文件时有时会报错System.Data.OleDb.OleDbException: 未指定的错误是什么问？

System.Data.OleDb.OleDbException: 未指定的错误
   在 System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection)
   在 System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
   在 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)
   在 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   在 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   在 System.Data.OleDb.OleDbConnection.Open()
   在 LDHY.ConsoleServiceManage.Program.SaveCSV(String tel, String message)
   在 LDHY.ConsoleServiceManage.Program.StartProcess()
   在 LDHY.ConsoleServiceManage.Program.Main()

补充：.NET技术 ,  C#