修复

app/controllers/api/pm/issues_controller.rb

@@ -176,10 +176,10 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
               issue.fake_id = row[0]
               issue.subject = row[1]
               issue.description = row[2]
-              author = User.find_by(login: row[3]) || User.where(admin: true).first 
+              author = User.find_by(login: row[3]) 
               issue.user = author 
               issue.created_on = row[4]
-              changer = User.find_by(login: row[5]) || User.where(admin: true).first 
+              changer = User.find_by(login: row[5])
               issue.changer = changer 
               issue.updated_on = row[6]
               issue.status_id = row[7].to_i
@@ -224,6 +224,8 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
               next if link_issue.blank? || be_link_issue.blank? 
               PmLink.create!(linkable_type: 'Issue', linkable_id: link_issue.id, be_linkable_type: 'Issue', be_linkable_id: be_link_issue.id)
             end
+          else
+            return render_error('导入失败，请上传正确格式的excel文件')
           end
           
         end