Dotnet 3x

[shargon]

Using the command line

dotnet tool install -g dotnet-format --version 4.0.40103 --add-source https://dotnet.myget.org/F/format/api/v3/index.json

Under travis (Mac), we obtains this error:

Welcome to .NET Core 3.0!
---------------------
SDK Version: 3.0.100
----------------
Explore documentation: https://aka.ms/dotnet-docs
Report issues and find source on GitHub: https://github.com/dotnet/core
Find out what's new: https://aka.ms/dotnet-whats-new
Learn about the installed HTTPS developer cert: https://aka.ms/aspnet-core-https
Use 'dotnet --help' to see available commands or visit: https://aka.ms/dotnet-cli-docs
Write your first app: https://aka.ms/first-net-core-app
--------------------------------------------------------------------------------------
dyld: lazy symbol binding failed: Symbol not found: _utimensat
  Referenced from: /usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.0.0/System.Native.dylib
  Expected in: /usr/lib/libSystem.B.dylib
dyld: Symbol not found: _utimensat
  Referenced from: /usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.0.0/System.Native.dylib
  Expected in: /usr/lib/libSystem.B.dylib
The tool package could not be restored.
Tool 'dotnet-format' 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 Core tool.
* The required NuGet feed cannot be accessed, perhaps because of an Internet connection problem.
* You mistyped the name of the tool.

In linux it works perfect

[JoeRobich]

Hi @shargon,

Sorry you are having issues. Version 4.0.40103 is unlisted in our myget and we don't recommend running it. That being said, I was unable to reproduce this issue on my MacBook that is running 3.0.100.

I did find this issue which seems to indicate issues with Travis and 3.0.100 - https://github.com/dotnet/corefx/issues/39701

-Joey