在 .NET 4.5.2 项目中没有成功安装 NuGet package 的参考

Question

Using Visual Studio 2015 and .NET 4.5.2, I am building a console .NET project that needs to use CosmosDb things, so I followed Tutorial: Build a .NET console app to manage data in Azure Cosmos DB SQL API account , successfully installed Microsoft.Azure.Cosmos (v3.15.1) using NuGet and tried to reference it.

However, the reference list didn't show this package there, and when I tried to use the package in the code, an error " The type or namespace name 'Azure' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?) " occurred in the project error list.

There was a file "packages.config" which was like:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Microsoft.Azure.Cosmos" version="3.15.1" targetFramework="net452" />
</packages>

I have tried to re-install all the packages using Update-Package -reinstall but nothing happened.

What steps did I miss?

Answer 1

The Solution:

Change .NET Framework version to 4.6.1 or higher and then reinstall the package.