diff --git a/app/api/mobile/apis/blockchains.rb b/app/api/mobile/apis/blockchains.rb
index be378b2d0..8b0836345 100644
--- a/app/api/mobile/apis/blockchains.rb
+++ b/app/api/mobile/apis/blockchains.rb
@@ -57,6 +57,7 @@ module Mobile
           requires :repo_url, type: String
         end
         post 'join' do
+          Rails.logger.info("!!!!!!!!!!in the join service")
           authenticate!
           # 根据repo_git_url找到repository对应的项目
           rs = RepositoriesService.new
@@ -64,9 +65,10 @@ module Mobile
           if project
             blockchain = Blockchain.find_by_project_id(project.id)
             if blockchain
-              Rails.logger.info("!!!!!!!this is the return values")
+              Rails.logger.info("!!!!!!!!!find the project's blockchain info")
               {status:status, genesis_content:blockchain.genesis_content, network_id:blockchain.network_id, connect_ip:blockchain.connect_ip, port:blockchain.port, enode:blockchain.enode}
             else
+              Rails.logger.info("!!!!!!!!!not find the project's blockchain info")
               {status:-1, message: '数据库有问题，blockchain信息不存在'}
             end
           else
diff --git a/app/services/repositories_service.rb b/app/services/repositories_service.rb
index 5ec84d286..c62b1570e 100644
--- a/app/services/repositories_service.rb
+++ b/app/services/repositories_service.rb
@@ -55,16 +55,21 @@ class RepositoriesService
 
     owner = User.find_by_login(owner_name)
     if owner
+      Rails.logger.info("!!!!!!!!!!find the owner")
       projects = Project.find_all_by_user_id(owner.id)
       if projects.length <= 0
         return status, nil
       else
+        Rails.logger.info("!!!!!!!!!!!!!find the owner's projects")
         projects.each do |project|
           gpid = project.gpid
           if gpid
+            Rails.logger.info("!!!!!!!!!!This project has gpid")
             http_url_to_repo = Gitlab.client.project(gpid).try(:http_url_to_repo)
             if http_url_to_repo
+              Rails.logger.info("!!!!!!!!!!!find the repo_url for this gpid")
               if repo_url == http_url_to_repo
+                Rails.logger.info("!!!!!!!!!!!!repo_url equals")
                 status = 0
                 return status, project # 表示找到了
               end