命名空间“Microsoft”中不存在类型或命名空间名称“Azure”

Question

I am working on a Windows 10 UWP app and would like to store some information in Cosmos DB. Following the getting started instructions does not work with Microsoft Azure DocumentDB NuGet package 1.19.1, nor with former ones.

The type or namespace name 'Azure' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?).

Target version is Windows 10 Fall Creators Update but I face the same issue with other builds.

Have you got any ide how to solve it?

Answer 1

You have the package for .NET Standard. I believe you need the package for .NET Core for UWP. Microsoft.Azure.DocumentDB.Core v 1.7.1

Please note the package Microsoft.Azure.DocumentDB.Core 1.7.1 is not compatible with the version before Windows 10 Fall Creators Update. So you should set both the Target and the Minimum version to Windows 10 Fall Creator Update Build 16299 for your project.

Answer 2

就我而言，我只需要安装缺少的Microsoft.Azure.Cosmos包：

$ dotnet add package Microsoft.Azure.Cosmos --version 3.11.0

Answer 3

If you already have the NuGet package installed, but it's still not recognized, for me it often helps to downgrade the package to a lower version (using the package manager) and then upgrade it back to the original version.

This is especially true if you are cloning existing projects to a new machine.