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-rw-r--r--prelude.rb6
1 files changed, 5 insertions, 1 deletions
diff --git a/prelude.rb b/prelude.rb
index 48d94641bd..02d93efdd9 100644
--- a/prelude.rb
+++ b/prelude.rb
@@ -1,7 +1,11 @@
class Binding
# :nodoc:
def irb
- force_activate "irb" if defined?(Bundler) && !Gem.loaded_specs["irb"]
+ if defined?(Bundler) && !Gem.loaded_specs["irb"]
+ unless force_activate "irb"
+ warn "irb is not found. Install irb from RubyGems or add irb to Gemfile."
+ end
+ end
require 'irb'
irb
end