Mysql F#类型提供程序错误，在读卡器关闭时尝试读取

我试图按照LinuxMint上的SQLProviderMySQL Provider的说明，使用MonoDevelop或VS代码。我有：

let [<Literal>] connString = @"Server=localhost;Database=PriceData;User=root;Password=-----;SslMode=none"              
let [<Literal>] connexStringName = "DefaultConnectionString"            
let [<Literal>] dbVendor    = Common.DatabaseProviderTypes.MYSQL
let [<Literal>] resPath = __SOURCE_DIRECTORY__ + @"/../../../Simulations 2018-07-29/packages/MySqlConnector.0.43.0/lib/net45"
let [<Literal>] indivAmount = 1000
let [<Literal>] useOptTypes = true

这件事完全把我难住了。我以前在Windows和Visual Studio中从未遇到过这样的错误。我找不到任何与F#和类型提供程序相关的搜索

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如有任何建议，我们将不胜感激

你知道你的Mono、MySQL、F#Core和F#Data版本吗？嗨，我们，看起来Mono是5.10.1.47，MySQL是14.14发行版5.7.23，F#Core似乎是4.5.2，而FSharp Data是2.4.6。谢谢你的评论。

type SQL = SqlDataProvider< dbVendor,
                            connString,
                            ResolutionPath = resPath,
                            IndividualsAmount = indivAmount,
                            UseOptionTypes = useOptTypes
                            Owner = "HR" >  ///"PriceData">

The type provider 'FSharp.Data.Sql.SqlTypeProvider' reported an error: 
Invalid attempt to Read when reader is closed.