title: Installing requirements.txt on heroku runs error
body: <p>I am deploying an application using heroku. In the python code I am using a NLP library called <strong>spacy</strong>.
  I already deployed the app without any installed library, working perfectly.</p>
  <p>I added the library in the requirements.txt of the app:</p>
  <p><a href="https://i.stack.imgur.com/AB1yF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AB1yF.png" alt="enter image description here" /></a></p>
  <p>In my cmd, at the time of deployment I am using:</p>
  <pre><code>pip install -r requirements.txt
  </code></pre>
  <p>However, it runs an error:</p>
  <p><a href="https://i.stack.imgur.com/yIkdG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yIkdG.png" alt="enter image description here" /></a></p>
  <p>intentionally avoided writing the code because of the sizeI also installed Microsoft C++ Build Tools and restarted cmd, but now it runs additional errors.</p>
  <p>This is a screenshot of the files I am uploading:</p>
  <p><a href="https://i.stack.imgur.com/NGOon.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NGOon.png" alt="enter image description here" /></a></p>
  <p>Is there a way I can install the libraries remotely? I would like to avoid countless installations. Given the red code, am I doing something wrong or am I just missing packages?</p>
  <p>(intentionally avoided writing the code because of the size)</p>