diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 4764d1cd7..25d7b2a15 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -49,7 +49,7 @@ class RepositoriesController < ApplicationController
   helper :project_score
   #@root_path = RepositoriesHelper::ROOT_PATH
   $g=Gitlab.client
-  require 'net/ssh'
+  # require 'net/ssh'
 
   rescue_from Redmine::Scm::Adapters::CommandFailed, :with => :show_error_command_failed
   def new
diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index b525c4aed..72bee4843 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -65,7 +65,7 @@ module RepositoriesHelper
 
   # 获取diff内容行号
   def diff_line_num content
-    content.scan(/@@ -(\d+),\d+ \+\d+,\d+ @@/).first.join("").to_i
+    content.scan(/@@ -(\d+),\d+ \+\d+,\d+ @@/).first.nil? ? "" : content.scan(/@@ -(\d+),\d+ \+\d+,\d+ @@/).first.join("").to_i
   end
 
   # 处理内容