Microsoft.VisualBasic does not work in VisualStudio 2017 class library project - visual-studio-2017

Question

I am trying to create a class library in VS2017 in which I would like to use the TextFieldParser from Microsoft.VisualStudio. I had to add the direct reference to that dll C:\Program Files (x86)\Reference
I am also using the File class from System.IO
Assemblies\Microsoft\Framework.NETFramework\v4.6.2\Microsoft.VisualBasic.dll
But the build is failing with messages that do not make sense to me, some of which are
The name 'File' does not exist in the current context
The type 'Stream' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
The type 'TextReader' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
I am not sure if this is due to the new packaging of .NET standard version of the framework
What do I need to do to build the project? Thanks so much!
I have pasted my code below
public async Task<IEnumerable<Security>> GetSecuritiesAsync()
{
string[] lines;
using (var reader = File.OpenText("securities.csv"))
{
var fileText = await reader.ReadToEndAsync();
lines = fileText.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
}
//first line header
var securities = new List<Security>();
for (int i = 1; i < lines.Length; i++)
{
if (!string.IsNullOrEmpty(lines[i]))
{
string[] attrs = ParseCsv(lines[i]);
if (attrs.Length == 4)
{
var sec = new Security();
int id;
if (int.TryParse(attrs[0], out id))
{
sec.ID = id;
}
else
{
continue;
}
sec.Symbol = attrs[1];
sec.Name = attrs[2];
sec.Sector = attrs[3];
securities.Add(sec);
}
}
}
return securities;
}
private string[] ParseCsv(string line)
{
TextFieldParser parser = new TextFieldParser(new StringReader(line));
parser.HasFieldsEnclosedInQuotes = true;
parser.SetDelimiters(",");
string[] fields = null;
while (!parser.EndOfData)
{
fields = parser.ReadFields();
}
parser.Close();
return fields;
}
}