Trying the new .NET stuff, getting a GLIBCXX_3.4.21 error

I'm trying to install the new .NET Core stuff on an Mageia 5 system, following the directions for Fedora here:
https://www.microsoft.com/net/core
I installed libunwind and libicu via the package manager, not Yum, but otherwise followed these simple steps.
Running /opt/dotnet/dotnet, I get this error:
What's going on here? How can I fix this?
https://www.microsoft.com/net/core
I installed libunwind and libicu via the package manager, not Yum, but otherwise followed these simple steps.
Running /opt/dotnet/dotnet, I get this error:
- Code: Select all
./dotnet: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by ./dotnet)
What's going on here? How can I fix this?