Fix the Issue in .Net Core Project

Web based Application based on ASP .NET Core (Migration from 2.1 to 3.1 ) with Autofac , Entityframework , SQL Server 2018 etc . Need some Threading experience .

An exception was thrown while invoking the constructor 'Void .ctor(***.[login to view URL], [login to view URL],**.[login to view URL])' on type '***APIProvider'. --->

An item with the same key has already been added. Key: [login to view URL] (See inner exception for details.)

at [login to view URL]`[login to view URL](TKey key, TValue value, InsertionBehavior behavior)

at [login to view URL](HeaderDescriptor descriptor, String value)

at ...............

at ..........

This issue occurs only in Production and once it occurs it starts erroring for all requests .

Habilidades: Microsoft SQL Server , Programação C#, ASP.NET, .NET

Acerca do Empregador:
( 0 comentários ) Slough, United Kingdom

ID do Projeto: #32658235

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Hello there, I'm Chris, a long-time .Net chap. I've been writing C# and using .Net since they were invented. This looks straightforward enough, AutoFac, EF & SQL aren't going to be part of it, the solution will very l Mais

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21 freelancers estão ofertando em média £164 nesse trabalho

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*Hello..., My Availability: 40+ hours/week. Ready to start work immediately. I read your requirement of ASP.NET Developer to I am 5+ years experienced full stack .net developer in ASP.NET Core / MVC / WinForm, C#, Raz Mais

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Hello, It seems that at some point in your code one entry was added with the same key in a dictionary ( a collection type that indexes by unique keys ). Most likely the request you are making to an api. I am currentl Mais

£100 GBP in 7 dias
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hey I am software developer with 8 years of experience .I have read all your instructions. I am expert in c#, html5, .NET, , .NET CORE, JavaScript, MVC, PAYMENT GATEWAY INTEGRATION and many more... so please co Mais

£250 GBP in 15 dias
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You must be having load balancer in between, which is adding some extra headers eg. X-Forwarded-For etc. I can help you to fix the issue, may need server or code access. Regards, Saad Shaikh

£100 GBP in 7 dias
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Hi there, I am a expert Program egineer. As a guru of .NET Core, I can fix your bug fast and clearly please contact to me about your project best regard

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I just finished with one project, and I don't have any more projects at the moment. I will be able to give it my full attention and complete it on time. Other than that, I have all the skills you mentioned, and I can e Mais

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Hi. I can figure out your problem. It probably occurs because of ef core. Text me back please. I will be fix it.

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Hi Dear, I am having around 9 years in software development with .Net technology and SQL database. I am ready to take this opportunity. So think once and discuss early to start. Thanks

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I have 5 years of experience in C# .NET Developer & Microsoft Technologies. If hired by you I will be responsible to complete the task within the stipulated time frame and with utmost confidence. Outsource me for your Mais

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