I try to update dotnet-ef tool (nothing to do with telerik) but my command line says..
dotnet tool update --global dotnet-ef
C:\Users\.....\AppData\Local\Temp\39691258-df65-4470-843c-6b086590af0f\restore.csproj : error NU1301: Failed to retriev
e information about 'dotnet-ef' from remote source 'https://nuget.telerik.com/v3/package/dotnet-ef/index.json'.
Tool 'dotnet-ef' failed to update due to the following:
The tool package could not be restored.
Tool 'dotnet-ef' 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
dotnet tool update --global dotnet-ef
C:\Users\.....\AppData\Local\Temp\39691258-df65-4470-843c-6b086590af0f\restore.csproj : error NU1301: Failed to retriev
e information about 'dotnet-ef' from remote source 'https://nuget.telerik.com/v3/package/dotnet-ef/index.json'.
Tool 'dotnet-ef' failed to update due to the following:
The tool package could not be restored.
Tool 'dotnet-ef' 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