为什么迁移后不显示页面？

Question

我收到以下错误：

  

OperationalError，位于/ admin / newapp / efficiencyfield /   没有这样的表：newapp_effectivenessfield

此错误在管理页面上显示，但不在类内

models.py

from __future__ import unicode_literals
from django.db import models
from django.contrib.auth.models import User
from completeness.models import Project


class ConclusionName(models.Model):
    user = models.ForeignKey(User)
    conclusion_name = models.CharField(max_length=250)

    def __unicode__(self):
        return self.name

class RetrospectiveField(models.Model):
     user = models.ForeignKey(User)
     baseText = models.TextField(max_length=255)
     comments = models.TextField(max_length=255)
     project = models.ForeignKey(Project)

class ValidityField(models.Model):
     user = models.ForeignKey(User)
     baseText = models.TextField(max_length=255)
     comments = models.TextField(max_length=255)
     project = models.ForeignKey(Project)

class EffectivenessField(models.Model):
     user = models.ForeignKey(User)
     baseText = models.TextField(max_length=255)
     comments = models.TextField(max_length=255)
     project = models.ForeignKey(Project)

admin.py

from django.contrib import admin

from .models import ConclusionName, RetrospectiveField, ValidityField, EffectivenessField

admin.site.register(ConclusionName)
admin.site.register(RetrospectiveField)
admin.site.register(ValidityField)
admin.site.register(EffectivenessField)