Failing to install ReSharper.GlobalTools when current directory contains several project files

[kkostenkov]

command
/usr/share/dotnet/dotnet tool update --global JetBrains.ReSharper.GlobalTools
generates
Specify which project file to use because this '/__w/projectName/projectName' contains more than one project file.

[kkostenkov]

muno92/resharper_inspectcode#482