修改issues的接口方法异常

app/models/project.rb

@@ -18,7 +18,7 @@ class Project < ApplicationRecord
   has_one :project_score, dependent: :destroy
   has_one :repository, dependent: :destroy
   has_many :pull_requests, dependent: :destroy
-
+  has_many :issue_tags, dependent: :destroy
   has_many :issues, dependent: :destroy
   has_many :user_grades, dependent: :destroy
   has_many :attachments, as: :container, dependent: :destroy