title: Cannot install some libraries from requirements.txt in IntellijIDEA
body: <p>In my Python project developed in IntellijIDEA, I have the file <code>requirements.txt</code> with the following content:</p>
  
  <pre><code>paho-mqtt==1.3.1
  scipy=0.19.0
  utm==0.4.2
  pandas==0.22.0
  shapely=1.3.3
  pyproj=1.9.5.1
  </code></pre>
  
  <p>When I build the project, I get the error:</p>
  
  <pre><code>Solving environment: ...working... failed
  
  
  PackagesNotFoundError: The following packages are not available from current channels:
  
    - paho-mqtt==1.3.1
  
  Current channels:
  
    - https://repo.continuum.io/pkgs/main/osx-64
    - https://repo.continuum.io/pkgs/main/noarch
    - https://repo.continuum.io/pkgs/free/osx-64
    - https://repo.continuum.io/pkgs/free/noarch
    - https://repo.continuum.io/pkgs/r/osx-64
    - https://repo.continuum.io/pkgs/r/noarch
    - https://repo.continuum.io/pkgs/pro/osx-64
    - https://repo.continuum.io/pkgs/pro/noarch
  </code></pre>
  
  <p>I was able to build this project on another laptop without any problem.</p>
  
  <p>I am using Python 3.6 and the Python SDK path is the following: <code>/Users/mimi/anaconda3/bin/python</code>.</p>