diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index 9ce1905f..4feaa3d0 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -153,8 +153,12 @@ class WelcomeController < ApplicationController
         shixun.update_column(:git_url, g.project(shixun.gpid).path_with_namespace)
         local_git_path = local_shixun.local_giturl.split('/').last if local_shixun.local_giturl.present?
         new_giturl = "http://educoder:xinhu1ji2qu3@"+g.project(shixun.gpid).http_url_to_repo.split('//').last
-        system("cd tmp/repositories/#{local_git_path};git remote remove origin;git remote add origin #{new_giturl};
+        # 如果有目录才执行
+        if system("cd tmp/repositories/#{local_git_path}")
+          system("cd tmp/repositories/#{local_git_path};git remote remove origin;git remote add origin #{new_giturl};
                   git add .;git commit -m '..';git push origin master")
+        end
+
 
         #  http://Hjqreturn:xinhu1ji2qu3@bdgit.educoder.net/Hjqreturn/pgfqe6ch8.git (fetch)