title: Pipenv issue: AttributeError: module 'pipenv.core' has no attribute 'project'
body: <p>I'm trying to pip install some dependencies into my virtual environment for a flask wsgi server with pipenv and I am met with his error:</p>
  <p><a href="https://i.stack.imgur.com/I2XCL.png" rel="nofollow noreferrer">Actual console error image</a></p>
  <pre><code>(code-S7821ldY) sentry@sentry:/var/www/code$ sudo pipenv install
  Pipfile.lock not found, creating…
  Locking [dev-packages] dependencies…
  X11 connection rejected because of wrong authentication.
  X11 connection rejected because of wrong authentication.
  X11 connection rejected because of wrong authentication.
  3/dist-packages/pipenv/resolver.py&quot;, line 52, in main
      project = pipenv.core.project
  AttributeError: module 'pipenv.core' has no attribute 'project'
  </code></pre>
  <p>This all began from trying to install opencv into a python 3.8 virtual environment. I can't seem to find much for this error online, any sort of help would be very much appreciated.</p>
  <p>This error also occurs when using pipenv lock, I can still access the shell of the environment regardless of this error. Not sure if this info is helpful but thought I would add it.</p>