所有烧瓶端点返回404(未找到)

我有一个API,它有12个端点,工作正常,然后端点开始失败,现在都返回404状态码。这是我的一些档案 我的

import os

from app import create_app

config = os.getenv('APP_SETTINGS')
app = create_app(config)

if __name__ == "__main__":
    app.run(debug=True)

我在中注册我的端点 app.py 像这样

 from flask import Flask
 from .api.v2.views.userview import auth


 def create_app(config):
 '''Creates all Flask configurations and returns app.
    Expects config name'''
     app = Flask(__name__, instance_relative_config=True)
     app.config['JSON_SORT_KEYS'] = False
     app.config.from_object(app_config[config])
     app.config.from_pyfile('config.py', silent=True)

     app.url_map.strict_slashes = False
     app.register_blueprint(auth)
     return app

最后是我的终点 user.py

     from flask import request, jsonify
     from flask import Blueprint

     from ..models.usermodel import UserModel

     usr_obj = UserModel()
     auth = Blueprint('auth', __name__, '/api/v2')


     @auth.route('/auth/signup', methods=['POST'])
     def user_signup():
         fullname = request.json['fullname']
         username = request.json['username']
         email = request.json['email']
         password = request.json['password']

         data = usr_obj.inituser(fullname, username, email, password)
         return jsonify(data), 201

当我尝试在版本1(/api/v1)中运行此端点或任何其他端点时,会出现一个未找到的错误。我也试过了 THIS SOLUTION 没有成功。