New C# API reference is not working. System.Buffers version mismatch in Nuget

On top of new C# reference, System.Text.JSon, System.Memory and System.Buffers like this several additional binaries are required. Also As I look through the System.Buffers latest version in Nuget packages is But Kite Connect is looking for System.Buffers file of version So latest API is not working.
kindly do the needful
  • tonystark
    I believe this collision is due to a library that is already present in your project. A fresh project works fine to me. Could you check your other dependencies?

    I tried a fresh project like this:
    $ dotnet new console -name kctest -o kctest
    $ cd kctest
    $ dotnet add package Tech.Zerodha.KiteConnect
    $ dotnet run
    Login with:
    using System;
    using KiteConnect;

    namespace kctest
    class Program
    static void Main(string[] args)
    Kite kite = new Kite("asdasdsd", Debug: true);
    Console.WriteLine("Login with: " + kite.GetLoginURL());
  • varuns
    But the existing project is nothing but same application which is running already with Kite Now all I am doing is replacing it to So, is automatic migration is not supported? Am still not comfortable to recreate my project as my application as I dont want duplicates. here are the list of Libraries I am using in my project. could you help me find out.
    AWSSDK.core, KiteConnect, MSCsharp, netstandard, System, System.configuration, System.Core, System.Data, System.Data.DataSetExtensions, System.Net.Http, System.XML and
    additionally below are Selenium references too which I am using.
    Castle.Core, Newtonsoft.Json, WebDriver, WebDriver.Support.

    Please do the needful.
  • tonystark
    Fixing project level dependencies is difficult, out of scope of this forum and it is upto developer to resolve. I can give you some pointers to help you in the decision making:

    - 3.0.0 is a very old version. Current version is 3.0.7 targeting netstandard20. Highly recommended to keep the libraries upto date.
    - Before 3.0.5 library doesn't need any external dependencies from Nuget. Check here.
    - The dependencies changed only in 3.0.5 as part of migration to netstandard20.
    These are the dependencies in this version (check here):
    CsvTextFieldParser (>= 1.2.1)
    Microsoft.CSharp (>= 4.7.0)
    System.Text.Json (>= 4.7.1)
    So if any issue happens while upgrading to 3.0.3 is due to the changes in minor versions of project dependencies.
    - From your original post, System.Buffers latest version is actually 4.5.1 not 4.0.0.
    - If you are upgrading a package and a conflict happens then you have to manually upgrade other libs that causes the conflict. A package manager like Nuget will not automatically do a major version upgrade in case of a conflict because a major version means a breaking change is happening that can potentially break the code.
  • varuns
    Hi Tony,

    As advised, today I tried creating a new VS 2019 C# Console Application Project.
    And I have given the below command to install Kite connect nuget package. But please see the error message. What could be the issue?

    PM> Install-Package Tech.Zerodha.KiteConnect
    Install-Package : Unable to find package 'Tech.Zerodha.KiteConnect'
    At line:1 char:1
    + Install-Package Tech.Zerodha.KiteConnect
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo : NotSpecified: (:) [Install-Package], Exception
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand

  • varuns
    Note : I am creating the project in 4.7.2 framework
  • varuns
    yes I tried it. But still getting similar error message. Below find the cmd and response.

    PM> Install-Package Tech.Zerodha.KiteConnect -Version 3.0.7

    Attempting to gather dependency information for package 'Tech.Zerodha.KiteConnect.3.0.7' with respect to project 'TradingService', targeting '.NETFramework,Version=v4.7.2'
    Install-Package : Package 'Tech.Zerodha.KiteConnect 3.0.7' is not found in the following primary source(s): 'C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\'.
    Please verify all your online package sources are available (OR) package id, version are specified correctly.
    At line:1 char:1
    + Install-Package Tech.Zerodha.KiteConnect -Version 3.0.7
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo : NotSpecified: (:) [Install-Package], Exception
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand
  • tonystark
    @varuns This seems like a setup/environment issue and is outside the scope of KiteConnect.
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