`cannot load such file -- did_you_mean` on `bunde install` with ruby-2.7.0 about bundler HOT 10 CLOSED

Can you also check RUBYOPT and RUBYLIB?

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Empty on both runs.

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Coulld you run ruby -e "require 'did_you_mean'; puts $LOADED_FEATURES.grep(/did_you_mean\.rb/)"?

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Traceback (most recent call last):
-e:1:in `<main>': undefined method `grep' for nil:NilClass (NoMethodError)

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If I run it from irb:

irb(main):001:0> require 'did_you_mean'; puts $LOADED_FEATURES.grep(/did_you_mean\.rb/)
/usr/share/gems/gems/did_you_mean-1.4.0/lib/did_you_mean.rb
=> nil

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So if you run $ gem list | grep default, did_you_mean is not there, right?

It sounds like your ruby distribution doesn't ship did_you_mean as a default gem, nor as a default library, and ruby pretty much expects this.

How did you install ruby?

As a workaround, I guess you could try RUBYOPT=--disable-did_you_mean.

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Basically ruby is built from this spec.
So after a bit of googling I've found ruby/did_you_mean#117 (comment) and looks like ruby/ruby@171803d should've made it default gem, but somehow it's not in fedora's 2.7.0.
Thanks for the help, I'll open a bug in fedora bugtracker.

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Great, thanks.

I guess we could avoid loading did_you_mean here like:

diff --git a/lib/rubygems/ext/ext_conf_builder.rb b/lib/rubygems/ext/ext_conf_builder.rb
index 88be7ecfe8..0f9d40210a 100644
--- a/lib/rubygems/ext/ext_conf_builder.rb
+++ b/lib/rubygems/ext/ext_conf_builder.rb
@@ -40,7 +40,7 @@ class Gem::Ext::ExtConfBuilder < Gem::Ext::Builder
       destdir = ENV["DESTDIR"]
 
       begin
-        cmd = Gem.ruby.shellsplit << "-I" << File.expand_path("../../..", __FILE__) <<
+        cmd = Gem.ruby.shellsplit << "--disable-did_you_mean" << "-I" << File.expand_path("../../..", __FILE__) <<
               "-r" << get_relative_path(siteconf.path) << File.basename(extension)
         cmd.push(*args)

But still Fedora should probably change this.

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I'm pretty sure they are already aware though, since they proposed ruby/ruby#2764 to ruby-core.

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Oh, good. Then I workaround it in our images for the time being.

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