The NuGet command from the PM Console is different from the NuGet.exe CLI Reference . The nuget command is not supported by the PM console. Check if your NuGet team is correct. Alternatively, you can try using a different command from the PM console to check for this problem:
Get-Package -ListAvailable
If the entire command is not recognized, check and update the version of Windows. In version 1511 you need to upgrade to .64 or newer builds ... otherwise you will encounter a powershell error.
Then upgrade NuGet VSIX ,
Open Visual Studio -> Tools -> Extensions and Updates -> Updates,
Update Nuget Package Manager for Visual Studio 2013/2015 (note that: after updating, update your visual studio).
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