title: ValueError: path is on mount 'C:', start on mount 'F:' while django migrations in windows
body: <p>I am trying to run the following command</p>
  
  <pre><code>python manage.py makemigrations
  </code></pre>
  
  <p>But, getting the error</p>
  
  <pre><code>ValueError: path is on mount 'C:', start on mount 'F:'
  </code></pre>
  
  <p>What can be the reason?</p>
  
  <p>complete traceback:-</p>
  
  <pre><code>Traceback (most recent call last):
  File "manage.py", line 10, in &lt;module&gt;
  execute_from_command_line(sys.argv)
  File "C:\Python34\lib\site-packages\django\core\management\__init__.py",  line 367, in execute_from_command_line
  utility.execute()
  File "C:\Python34\lib\site-packages\django\core\management\__init__.py", line 359, in execute
  self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Python34\lib\site-packages\django\core\management\base.py", line 294, in run_from_argv
  self.execute(*args, **cmd_options)
  File "C:\Python34\lib\site-packages\django\core\management\base.py", line 345, in execute
  output = self.handle(*args, **options)
  File "C:\Python34\lib\site-packages\django\core\management\commands\makemigrations.py", line 189, in handle
  self.write_migration_files(changes)
  File "C:\Python34\lib\site-packages\django\core\management\commands\makemigrations.py", line 207, in   write_migration_files
  migration_string = os.path.relpath(writer.path)
  File "C:\Python34\lib\ntpath.py", line 579, in relpath
  raise ValueError(error)
  ValueError: path is on mount 'C:', start on mount 'F:'
  </code></pre>