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运行时python manage.py test myapp2，我收到此错误：

Creating test database for alias 'default'...
Problem installing fixture '... project folder .../mymainapp/fixtures/initial_data.yaml': Traceback (most recent call last):
  File "... project folder .../venv/lib/python2.7/site-packages/django/core/management/commands/loaddata.py", line 196, in handle
    obj.save(using=using)
  File "... project folder .../venv/lib/python2.7/site-packages/django/core/serializers/base.py", line 165, in save
    models.Model.save_base(self.object, using=using, raw=True)
  File "... project folder .../venv/lib/python2.7/site-packages/django/db/models/base.py", line 524, in save_base
    manager.using(using).filter(pk=pk_val).exists())):
  File "... project folder .../venv/lib/python2.7/site-packages/django/db/models/query.py", line 565, in exists
    return self.query.has_results(using=self.db)
  File "... project folder .../venv/lib/python2.7/site-packages/django/db/models/sql/query.py", line 441, in has_results
    return bool(compiler.execute_sql(SINGLE))
  File "... project folder .../venv/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 818, in execute_sql
    cursor.execute(sql, params)
  File "... project folder .../venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 52, in execute
    return self.cursor.execute(query, args)
DatabaseError: Could not load myapp2.table2(pk=1): relation "myapp2_table2" does not exist
LINE 1: SELECT (1) AS "a" FROM "myapp2_table2" WHERE "myapp2...
                               ^

但是，所有实际测试都运行良好，因此看来该夹具确实已成功安装。在运行南迁移时，我也可以成功安装这些装置。

即使它似乎没有任何影响，我能做些什么来修复这个错误？这似乎是在我手工制作南迁移之后才发生的。

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