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-rw-r--r--activesupport/lib/active_support/cache/mem_cache_store.rb7
1 files changed, 6 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/cache/mem_cache_store.rb b/activesupport/lib/active_support/cache/mem_cache_store.rb
index d8377a208f..e3a2688e2f 100644
--- a/activesupport/lib/active_support/cache/mem_cache_store.rb
+++ b/activesupport/lib/active_support/cache/mem_cache_store.rb
@@ -1,4 +1,9 @@
-require 'memcache'
+begin
+ require 'memcache'
+rescue LoadError => e
+ $stderr.puts "You don't have memcache installed in your application. Please add it to your Gemfile and run bundle install"
+ raise e
+end
require 'digest/md5'
module ActiveSupport