django 报错

Posted 2023-03-31

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TemplateDoesNotExist at /blog/index/blog/index.htmlRequest Method: GETRequest URL: http://127.0.0.1:8000/blog/index/Django Version: 1.11.4Exception Type: TemplateDoesNotExistException Value: blog/index.htmlException Location: /home/li/.local/lib/python2.7/site-packages/django/template/loader.py in get_template, line 25Python Executable: /usr/bin/pythonPython Version: 2.7.12Python Path: ['/home/li/django/myblong', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/home/li/.local/lib/python2.7/site-packages', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/python2.7/dist-packages/ubuntu-kylin-sso-client']Server time: Fri, 15 Sep 2017 12:12:51 +0000Template-loader postmortemDjango tried loading these templates, in this order:Using engine django: django.template.loaders.app_directories.Loader: /home/li/.local/lib/python2.7/site-packages/django/contrib/admin/templates/blog/index.html (Source does not exist) django.template.loaders.app_directories.Loader: /home/li/.local/lib/python2.7/site-packages/django/contrib/auth/templates/blog/index.html (Source does not exist) django.template.loaders.app_directories.Loader: /home/li/django/myblong/blog/templates/blog/index.html (Source does not exist)

参考技术A 这个无法直接运行的，后面是需要跟参数的，你的截图里有提示，比如创建一个djiango项目可以：
django-admin.py startproject hellow 参考技术B 不要自己用id字段,会和django本身的命名有冲突,可以用fid等其他字段名代替追问

解决了　　，我疏忽了一个小问题，555555，把教程再看了一遍，仔细度了一遍，，，感觉好心酸

参考技术C 朋友你怎么解决的啊？？求解啊

解决报错：Django框架数据库迁移出现报错：django.db.migrations.exceptions.InconsistentMigrationHistory（图文并茂）

解决Django框架在数据库迁移时出现报错

报错信息

我们有时在django框架中进行数据库迁移，会出现下述报错，导致数据库迁移失败：

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\base.py", line 83, in wrapped
    res = handle_func(*args, **kwargs)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\core\\management\\commands\\makemigrations.py", line 101, in handle
    loader.check_consistent_history(connection)
  File "E:\\virtualenv\\djangoFrame-V3Y6g1nz\\lib\\site-packages\\django\\db\\migrations\\loader.py", line 299, in check_consistent_history
    connection.alias,
django.db.migrations.exceptions.InconsistentMigrationHistory: Migration user.0002_user_create_time is applied before its dependency user.0001_initial on database 'default'.

问题分析

首先我们需要了解django数据库迁移时，发生的操作：
① python manage.py makemigrations：根据我们自定义的模型生成对应的迁移脚本
② python manage.py migrate ：发生了两步操作：一：将迁移脚本转换成sql语句，然后再去数据库中执行转换后的sql语句。二：如果转换后的sql语句没有错误，则会此条迁移记录保存到数据库中的django_migrations表中
出现上述错误的原因就是：数据库django_migrations表中保存的迁移版本与django项目目录下的迁移版本不一致