django遇到如下错误

Traceback(most recent call last):

  File "",line 1,in

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py",line 710,in save

    force_update=force_update,update_fields=update_fields)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py",line 738,in save_base

    updated = self._save_table(raw,cls,force_insert,force_update,using,update_fields)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py",line 822,in _save_table

    result = self._do_insert(cls._base_manager,using,fields,update_pk,raw)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py",line 861,in _do_insert

    using=using,raw=raw)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/manager.py",line 127,in manager_method

    return getattr(self.get_queryset(),name)(*args,**kwargs)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py",line 920,in _insert

    return query.get_compiler(using=using).execute_sql(return_id)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/sql/compiler.py",line 974,in execute_sql

    cursor.execute(sql,params)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py",line 79,in execute

    return super(CursorDebugWrapper,self).execute(sql,params)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py",line 64,in execute

    return self.cursor.execute(sql,params)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/utils.py",line 97,in __exit__

    six.reraise(dj_exc_type,dj_exc_value,traceback)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/utils/six.py",line 658,in reraise

    raise value.with_traceback(tb)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py",line 64,in execute

    return self.cursor.execute(sql,params)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py",line 318,in execute

    return Database.Cursor.execute(self,query,params)

django.db.utils.OperationalError: no such table: boot_test_bookinfo

>>> 

原因是代码没有migrate