title: Can't find Flask template specified by relative path
body: <p>I am trying to render the <code>index.html</code> template in my Flask app's templates folder. However, I get a <code>TemplateNotFound</code> error. The template exists. How do I render it?</p>
  
  <pre><code>@app.route('/')
  def index():
      return render_template('../../templates/index.html')
  </code></pre>
  
  
  
  <pre><code>Traceback (most recent call last):
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\app.py", line 1982, in wsgi_app
      response = self.full_dispatch_request()
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\app.py", line 1614, in full_dispatch_request
      rv = self.handle_user_exception(e)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\app.py", line 1517, in handle_user_exception
      reraise(exc_type, exc_value, tb)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\_compat.py", line 33, in reraise
      raise value
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\app.py", line 1612, in full_dispatch_request
      rv = self.dispatch_request()
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\app.py", line 1598, in dispatch_request
      return self.view_functions[rule.endpoint](**req.view_args)
    File "G:\Projects\Intellij\Python\HelloPython\controller\web\WebHomeController.py", line 10, in webIndex
      return render_template('../../templates/index.html', message=message)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\templating.py", line 133, in render_template
      return _render(ctx.app.jinja_env.get_or_select_template(template_name_or_list),
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\jinja2\environment.py", line 869, in get_or_select_template
      return self.get_template(template_name_or_list, parent, globals)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\jinja2\environment.py", line 830, in get_template
      return self._load_template(name, self.make_globals(globals))
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\jinja2\environment.py", line 804, in _load_template
      template = self.loader.load(self, name, globals)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\jinja2\loaders.py", line 113, in load
      source, filename, uptodate = self.get_source(environment, name)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\templating.py", line 57, in get_source
      return self._get_source_fast(environment, template)
    File "G:\Settings\Windows\ProgramFiles\Python\Python35-32\lib\site-packages\flask\templating.py", line 85, in _get_source_fast
      raise TemplateNotFound(template)
  jinja2.exceptions.TemplateNotFound: ../../templates/index.html
  </code></pre>