麻烦大家帮我看下如下错误,感谢各位朋友:
我的环境是:

python环境是:Python 3.6.0
数据库已经连上了,我oralce中已经查到有这个链接了,执行python manage.py makemigrations是成功的,并且已经生成了信息,如下:

但是在python manage.py migrate时候就会报以下错误:
注:红色是由于我已经执行过了makemigrations后了,请关注非红色部分
PS E:\python_xx\product_project2> python .\manage.py makemigrations
Migrations for 'prod_text':
prod_text\migrations\0001_initial.py
- Create model BookInfo
- Create model HeroInfo
PS E:\python_xx\product_project2> python .\manage.py migrate
Operations to perform:
Apply all migrations: admin, auth, contenttypes, prod_text, sessions
Running migrations:
Applying contenttypes.0001_initial...Traceback (most recent call last):
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\utils.py", line 62, in execute
return self.cursor.execute(sql)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\oracle\base.py", line 497, in execute
return self.cursor.execute(query, self._param_generator(params))
cx_Oracle.DatabaseError: ORA-00955: name is already used by an existing object
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File ".\manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\core\management\__init__.py", line 364, in execute_from_command_line
utility.execute()
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\core\management\__init__.py", line 356, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\core\management\base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\core\management\base.py", line 330, in execute
output = self.handle(*args, **options)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\core\management\commands\migrate.py", line 204, in handle
fake_initial=fake_initial,
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\migrations\executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\migrations\executor.py", line 145, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\migrations\executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\migrations\migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\migrations\operations\models.py", line 97, in database_forwards
schema_editor.create_model(model)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\base\schema.py", line 319, in create_model
self.execute(sql, params or None)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\base\schema.py", line 136, in execute
cursor.execute(sql, params)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\utils\six.py", line 685,in reraise
raise value.with_traceback(tb)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\utils.py", line 62, in execute
return self.cursor.execute(sql)
File "C:\Python36\lib\site-packages\django-1.11.20-py3.6.egg\django\db\backends\oracle\base.py", line 497, in execute
return self.cursor.execute(query, self._param_generator(params))
django.db.utils.DatabaseError: ORA-00955: name is already used by an existing object