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-rw-r--r--railties/lib/rails/application.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/railties/lib/rails/application.rb b/railties/lib/rails/application.rb
index 558a4d1f57..6bc6c548d2 100644
--- a/railties/lib/rails/application.rb
+++ b/railties/lib/rails/application.rb
@@ -587,6 +587,7 @@ module Rails
if !File.exist?(key_file)
random_key = SecureRandom.hex(64)
+ FileUtils.mkdir_p(key_file.dirname)
File.binwrite(key_file, random_key)
end