嘗試在現有項目中創建新項目或創建新應用程序時出錯

Question

在我的服務器上是Django 1.9，幾個月前我從Django 1.8更新了它。一切工作正常，直到我決定建立在現有項目的新應用：

python manage.py startapp test123 

然後我得到了一個錯誤：

/test123/tests.py already exists, overlaying a project or app into an existing directory won't replace conflicting files

於是，我就這樣做的另一個項目，仍然是相同的。然後我試圖在其上創建新項目，並安裝新的應用程序，但是當我鍵入此命令：

django-admin.py startproject anyproject 

我得到這個錯誤： CommandError: /var/www/anyproject/manage.py already exists, overlaying a project or app into an existing directory won't replace conflicting files 然後我在現有項目的根目錄鍵入以下命令：

django-admin runserver 

結束了錯誤：

Traceback (most recent call last): 
    File "/usr/local/bin/django-admin", line 5, in <module> 
    from pkg_resources import load_entry_point 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2749, in <module> 
    working_set = WorkingSet._build_master() 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 446, in _build_master 
    return cls._build_from_requirements(__requires__) 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 459, in _build_from_requirements 
    dists = ws.resolve(reqs, Environment()) 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 628, in resolve 
    raise DistributionNotFound(req) 
pkg_resources.DistributionNotFound: Django==1.8.3 

然後，此命令：

django-admin.py runserver 

然後有這樣的錯誤：

File "/usr/local/bin/django-admin.py", line 5, in <module> 
    management.execute_from_command_line() 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 353, in execute_from_command_line 
    utility.execute() 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 345, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 195, in fetch_command 
    klass = load_command_class(app_name, subcommand) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 39, in load_command_class 
    module = import_module('%s.management.commands.%s' % (app_name, name)) 
    File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module 
    __import__(name) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 16, in <module> 
    from django.db.migrations.executor import MigrationExecutor 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/executor.py", line 7, in <module> 
    from .loader import MigrationLoader 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 10, in <module> 
    from django.db.migrations.recorder import MigrationRecorder 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 12, in <module> 
    class MigrationRecorder(object): 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 26, in MigrationRecorder 
    class Migration(models.Model): 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 27, in Migration 
    app = models.CharField(max_length=255) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 1072, in __init__ 
    super(CharField, self).__init__(*args, **kwargs) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 166, in __init__ 
    self.db_tablespace = db_tablespace or settings.DEFAULT_INDEX_TABLESPACE 
    File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 55, in __getattr__ 
    self._setup(name) 
    File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 41, in _setup 
    % (desc, ENVIRONMENT_VARIABLE)) 
django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings. 

後，我卸載所有的Django使用PIP，然後重新安裝。但我仍然有這個錯誤。有人可以幫我嗎？謝謝

Answer 1

啓動新應用程序的命令是startapp，而不是startproject。 startproject是，用於啓動一個全新的項目，以及一個新的manage.py等;顯然如果你已經有一個項目，你不想覆蓋這些文件。 （或者將--settings參數傳遞給django-admin，這實際上是manage.py的作用）。