Could you provide a repro script ?

#! "net7.0"
#load "./define.csx"
// #r "c:/Users/hjjls/.nuget/packages/anglesharp/1.0.1/lib/net7.0/AngleSharp.dll"
// #r "C:/Users/hjjls/.nuget/packages/anglesharp.xpath/2.0.1/lib/net6.0/AngleSharp.XPath.dll"
using System;
using System.Data;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using Synario.Interactive;
using Synario.Interactive.Generate;
using Synario.Interactive.Data;
using Synario.Interactive.Simulate;
using System.Net.Http;
using System.Threading;
using AngleSharp;
using AngleSharp.XPath;

var targetAddress = "https://zyk.99.com.cn/baike/zhongyao/";

ctx.Map.DbStoreDir = "e:/dbstore";
// create scaleph
MetaType getMtIndex()
{
var mtindex = MetaType.Build("ZhongYaoIndex", MetaTypePrefix.Res);
mtindex.AddField("href", typeof(string));
mtindex.AddField("name", typeof(string));
mtindex.AddField("group", typeof(string));
return mtindex;
}
ScalephSetting getBaseSetting()
{
var basePath = "/html/body/div[5]/div[3]/div[1]";///html/body/div[5]/div[3]/div[1]
var setting = new ScalephSetting(targetAddress, basePath);
//
setting.SubXPaths.Add("dl");
setting.SubXPaths.Add("dd");
setting.SubXPaths.Add("a");
//
setting.EncodeStr = "gb2312";
setting.GetFieldXPath = (xpath, fn) =>
{
switch (fn)
{
case "href": return $"{xpath}/@href";
case "name": return $"{xpath}/text()";
case "group": return $"{xpath}/../../dt/h2/a/text()";
}
throw new Exception("xpath not found");
};
return setting;
}
var scaleph = new Scaleph(ctx.Map.DbStoreDir);
if (!System.IO.File.Exists(scaleph.DbPath))
{
// create db
System.IO.File.Create(scaleph.DbPath).Close();
}
//
var mtindex = getMtIndex();
var setting = getBaseSetting();
async Task setMtIndex()
{
var idoc = await scaleph.GetDocumentAsync(setting);
var rows = scaleph.Extract(idoc, setting, mtindex);
foreach (var i in rows)
{
mtindex.Rows.Add(i);
}
}
await setMtIndex();
//type count
Console.WriteLine(mtindex.Rows.Count);
//
MetaType GetMetaDetail()
{
var mt = MetaType.Build("ZhongYaoDetail", MetaTypePrefix.Res);
mt.AddField("Id", Descrip.Int);
mt.AddField("Name", Descrip.String);
mt.AddField("Img", Descrip.Binary);
mt.AddField("Alias", Descrip.String);
mt.AddField("SiQi", Descrip.String);
mt.AddField("WuWei", Descrip.String);
mt.AddField("ChannelTropism", Descrip.String);//归经
mt.AddField("UsageDosage", Descrip.String);//用法用量
mt.AddField("EfficacyIndications", Descrip.String);//功效主治
mt.AddField("VariousDiscussions", Descrip.String);//各家论述
return mt;
}
ScalephSetting getDetailSetting()
{
var basePath = "/html/body/div[5]/div[2]/div[1]";
var setting = new ScalephSetting("", basePath);
setting.GetFieldXPath = (string xpath, string fn) =>
{
return "2";
// throw new Exception("xpath not found");
};
return setting;
}
async Task getZyDetail()
{
scaleph.QueryIndexTable();
var mtdetail = GetMetaDetail();
var settingdetail = getDetailSetting();
var settings = from i in SysDescriptor.Res_ScalephTemp.AsEnumerable()
select settingdetail with { url = i.Field(SysScalephTemp.baseurl) };

await foreach (var i in scaleph.GetDocumentsAsync(settings))
{
var rows = scaleph.Extract(i, settingdetail, mtdetail);
foreach (var j in rows)
{
mtdetail.Rows.Add(j);
}
}

//show mtdetail
foreach (DataRow i in mtdetail.Rows)
{
foreach (DataColumn j in mtdetail.Columns)
{
Console.WriteLine($"{j.ColumnName}:{i[j]},");
}
System.Console.WriteLine("-----------------");
}
}

Console.WriteLine("start");

"However, I cannot use simple code in the. csx file to demonstrate that this error occurs again. Although the code is marked with a red line, it can run successfully."

I have found a problem that when I add the '# load" xxx "statement, a red line error occurs. If it is not present or commented out, no red line error occurs.