diff --git a/lib/tasks/update_homework.rake b/lib/tasks/update_homework.rake
index 229337dc5..c98d6d7b0 100644
--- a/lib/tasks/update_homework.rake
+++ b/lib/tasks/update_homework.rake
@@ -2,7 +2,11 @@
 
 namespace :update_homework do
   desc "update homework project time"
-  def update_homework_time homeworks
+  task :update_homework => :environment do
+    year = Time.now.year
+    courses = Course.where("time > ? and is_delete = 0", (year.to_i - 2))
+    course_ids = courses.nil? ? '(-1)' : '(' + courses.map{|c| c.id}.join(',') + ')'
+    homeworks = HomeworkCommon.where("course_id in #{course_ids} and homework_type = 3")
     unless homeworks.nil?
       homeworks.each do |h|
         if h.homework_type == 3
@@ -28,38 +32,34 @@ namespace :update_homework do
                       time = changesets_latest_coimmit.created_at
                     end
                   end
-                rescue
+                rescue Exception => e
+                  puts e
                 end
               end
             end
           end
           s_time = time
+          logger.info("latest time is =========================> #{time}")
           if time.strftime('%Y-%m-%d %H:%M:%S') > h.updated_at.strftime('%Y-%m-%d %H:%M:%S')
             h.update_column('updated_at', s_time)
             course_activity = CourseActivity.where("course_act_type=? and course_act_id =?", 'HomeworkCommon', h.id).first
             if course_activity && (time.strftime('%Y-%m-%d %H:%M:%S') > course_activity.updated_at.strftime('%Y-%m-%d %H:%M:%S'))
               course_activity.update_column('updated_at', s_time)
+              logger.info("course_activity time is =========================> #{course_activity}")
             end
             user_activity = UserActivity.where("act_type=? and act_id =?", 'HomeworkCommon', h.id).first
             if user_activity && (time.strftime('%Y-%m-%d %H:%M:%S') > user_activity.updated_at.strftime('%Y-%m-%d %H:%M:%S'))
               user_activity.update_column('updated_at', s_time)
+              logger.info("user_activity time is =========================> #{user_activity}")
             end
             org_activity = OrgActivity.where("org_act_type=? and org_act_id =?", 'HomeworkCommon', h.id).first
             if org_activity && (time.strftime('%Y-%m-%d %H:%M:%S') > org_activity.updated_at.strftime('%Y-%m-%d %H:%M:%S'))
               org_activity.update_column('updated_at', s_time)
+              logger.info("org_activity time is =========================> #{s_time}")
             end
           end
         end
       end
     end
   end
-  task :update_homework => :environment do
-    year = Time.now.year
-    courses = Course.where("time > ? and is_delete = 0", (year.to_i - 2))
-    course_ids = courses.nil? ? '(-1)' : '(' + courses.map{|c| c.id}.join(',') + ')'
-    homeworks = HomeworkCommon.where("course_id in #{course_ids} and homework_type = 3")
-    unless homeworks.nil?
-      update_homework_time homeworks
-    end
-  end
 end