Command-t works but spews errors in console when changing ruby via RVM

[lightcap]

Everything seems to work just fine when I run MacVim with command-t after changing to ruby 2.5.0 via rvm.

But the second I try to use any other Ruby with rvm I get a flurry of errors about gem extensions not being built.

command-t was compiled against ruby-2.5.0, and the output from :ruby puts "#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}" is also 2.5.0-p0.

Given that command-t and MacVim were linked to the proper Ruby version at compile time, I don't understand why changing Ruby versions with RVM would affect anything at all.

Any insight here? Things seem to work, but the errors are 1) annoying and 2) concerning since I don't know what else it may be affecting.

It's also worth noting that this only seems to happen when running mvim from the command line. But, then I don't know where the output would go when running the app outside the command line.