NuGet error trying to restore package in VS "*" already has dependencies defined for "**"

Solution: Update NuGet plugin

How to update the NuGet plugin: Open the project-> Tools-> Extensions and Updates-> Update-> Visual Studio Library-> Update NuGet

After updating NuGet, restoring the package again will not cause this error

Reference: https://blog.csdn.net/cq_wacky/article/details/53096430 , https://blog.csdn.net/qq_36456952/article/details/55252913

 

Download the required nupkg package

Nuget package manager import nupkg file into project

If you want to import a .dll file, right-click "Reference"-> "Add Reference"-> "Browse" directly in the project