System.Net，无法解析符号“Net”

Question

I'm lost. My .NET Framework 4.6.2 cannot resolve my using System.Net. I've added the assembly reference, but is has that yellow warning triangle on the reference. How did I mess this up?

Because of other dependencies I'm stuck with 4.6.2

Answer 1

I'm lost. My .NET Framework 4.6.2 cannot resolve my using System.Net. I've added the assembly reference, but is has that yellow warning triangle on the reference. How did I mess this up?

First , try to install Net Framework 4.6.2 Developer Pack from this link or do a repair in VS Installer in case your net framework 4.6.2 is broken.

1) make sure that Target Framework is 4.6.2 by Right-click on your project--> Properties-->Application-->Target Framework is net framework 4.6.2 .

2) run update-package -reinstall under Tools --> Nuget Package Manger --> Package Manager Console to reinstall these nuget packages and their dependencies in case there are in a mess before.

3) close VS Instance, delete bin and obj folder and then restart your project.

4) Actually, system.net dll is a system dll of Net Framework and when you use it, you should search under net framework 4.6.2 .

Right-click on Reference-->Add Reference-->choose the v4.6.2 System.Net dll .

Or go through the path C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.2\System.Net.dll .

Actually , System.Net is a part of System.dll . And if you have System.dll in your project, you can just using System.Net in code editor without referencing it again.

In addition , you can enter Error list window , the warning will be listed in that window and it will tell you what is specific problem and if necessary, you can share it with us.