小编Ali*_* HI的帖子

i have an isssue with flask-login the user loader is not working

Exception: Missing user_loader or request_loader. Refer to http://flask-login.readthedocs.io/#how-it-works for more info.

and when i try to import the user model in shell:

AttributeError: 'LoginManager' object has no attribute 'load_user'

This is my code:

-------------------app/__init__.py----------------

from app.config import Config
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager


#create app
app = Flask(__name__)
app.config.from_object(Config)

#init pckages
db = SQLAlchemy(app)
login_manager = LoginManager(app)

#import Blueprints
from app.blueprints.user.routes …

我已经初始化了一个nuxt项目,当我尝试使用npm run dev或yarn dev命令运行它时,它会返回以下错误:

    build [==================  ] 91%Error: getaddrinfo ENOTFOUND localhost
    at errnoException (dns.js:50:10)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:92:26)
error Command failed with exit code 1.

知道它来自哪里？