Installing Project2015To2017.Migrate2019.Tool

[alizc]

Hello, Im trying to run

dotnet tool install --global Project2015To2017.Migrate2019.Tool

however Im getting the following error:

error NU1101: Unable to find package project2015to2017.migrate2019.tool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages The tool package could not be restored. Tool 'project2015to2017.migrate2019.tool' failed to install. This failure may have been caused by:

• You are attempting to install a preview release and did not use the --version option to specify the version.
• A package by this name was found, but it was not a .NET tool.
• The required NuGet feed cannot be accessed, perhaps because of an Internet connection problem.
• You mistyped the name of the tool.

For more reasons, including package naming enforcement, visit https://aka.ms/failure-installing-tool

I've tried using .NET Core 2.1 and .NET Core 3.1 but both of them didn't work.

I have downloaded the code on github and Im trying to run the command above in the CsprojToVs2017-master folder (I have also tried running the command in the folder \CsprojToVs2017-master\Project2015To2017.Migrate2019.Tool and \CsprojToVs2017-master\Project2015To2017.Migrate2019.Library but got the same error message)

Any help is greatly appreciated!