Setting Up .NET For a Raspberry Pi
Setup
Microsoft documentation shows the commands you need to install the SDK and/or runtime on a Pi. The bash.rc file should have the following in it at the end:
export DOTNET_ROOT=$HOME/.dotnet
export PATH=$PATH:$DOTNET_ROOT:$DOTNET_ROOT/toolsCheck the file system to validate that the paths above are correct.
Other References
This page might be useful in the event there are conflicts between versions of .NET that are installed.
This Stack Overflow post/answer was useful in getting things working.