Unable to restore / remove / update a NuGet package because the mentioned version is no longer available

Question

I\'m trying to give the SignalR Sample a test drive but it seems it references an old version of SignalR which is no longer available. The actual problem is that NuGet cannot re

Answer 1

In my case, I'd restarted visual studio. Then I'd removed nuget package entry from package.config.

After that I was able to restore the dependency.

Answer 2

Mentioned by @ferarias in a comment - if you are using nuget.exe, try updating it or downloading the latest version.

For me, upgrading from v4.4.1 to v4.6.2 was enough to fix the Some NuGet packages are missing error.

Answer 3

You can manually remove the dependency by:

1. Close Visual Studio (not a hard requirement, but helpful)
2. In text editor, remove dependency from all packages.config files
3. Remove package from packages/ directory
4. In text editor, remove all references to package from all .csproj files
5. Start Visual Studio
6. Reinstall package through NuGet

Answer 4

There's an easier solution, if you know the versions that currently exist in the feed. This solution can fix every package in every project.

• Open packages.config file (if you have more than one project, do this for every packages.config file)
• Update versions to the correct ones (i.e. change the version attribute)
• In the Package Manager Console, type Update-Package -Reinstall

Hope it helps

Answer 5

What works for me is:

1. Go to the packages.config file,

2. Find "... id="Microsoft.AspNet.SignalR.Client" version="" targetFramework="net45"..."

3. Change to an existing version, say "2.2.0".

4. Save.

5. Go to Nuget, and update to the latest.