Nuget doesn't restore all packages

Question

I open my project, using nuget - restore my packages, but as i see not all. For example Newtonsoft.Json is missing. I try to install it again using package manager console but get message 'already has a reference to Newtonsoft.Json (version)'

How can i fix this problem with references?

Answer 1

Usually when NuGet doens't restore the packages the problems are:

The most common:

1. You have the folder of the package you are trying to restore inside the "packages" folder (i.e. "Packages/EntityFramework.6.0.0/") but the "DLLs" are not inside it (most of the version control systems automatically ignore ".dll" files). This occurs because before NuGet tries to restore each package it checks if the folders already exist, so if it exists, NuGet assumes that the "dll" is inside it. So just delete the folder that NuGet will restore it correctly.

Less common (for old Visual Studio versions):

2. You have not enabled the "NuGet Package Restore" https://stackoverflow.com/a/23917432/890890