title: I've a trouble() with installing pandas 0.22 with "conda install" in my enviroment
body: <p>I'm learning about pandas and when I create a enviroment with anaconda with python 3.7 I dont getting to install the <strong><code>pandas version 0.22.0</code></strong>(that's a version of a courso that I'm doing) after that. I try create the 2 in the same time, but its doesnt work, the return is that conflict, but i don't know why conflit is. So, I tried create a enviroment using the Anaconda Navigator, and I get it, I get it create a environment, but it doest have a pandas installed, after all this, I tried to install the pandas handly on CMD into the enviroment and it's returning this code below...</p>
  
  <pre><code>(python_pandas) C:\Users\luanx&gt;conda install pandas=0.22.0
  Collecting package metadata (current_repodata.json): done
  Solving environment: failed with initial frozen solve. Retrying with flexible solve.
  Collecting package metadata (repodata.json): done
  Solving environment: failed with initial frozen solve. Retrying with flexible solve.
  Solving environment: \
  Found conflicts! Looking for incompatible packages.
  This can take several minutes.  Press CTRL-C to abort.
  Examining wincertstore:  39%|############################################5                                                                      | 19/49 [00:53&lt;00:49,  1.66s/it| Examining wheel:  43%|####################################################2                                                                     | 21/49 [01:19&lt;01:42,  3.68s/i/
  failed
  UnsatisfiableError: The following specifications were found to be incompatible with each other:
  Package wheel conflicts for:
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; wheel
  python=3.7 -&gt; pip -&gt; wheel
  Package python conflicts for:
  python=3.7
  Package pip conflicts for:
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip
  python=3.7 -&gt; pip
  Package ca-certificates conflicts for:
  python=3.7 -&gt; openssl[version='&gt;=1.1.1a,&lt;1.1.2a'] -&gt; ca-certificates
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; requests -&gt; urllib3[version='&gt;=1.21.1,&lt;1.23'] -&gt; cryptography[version='&gt;=1.3.4'] -&gt; openssl[version='&gt;=1.1.1b,&lt;1.1.2a'] -&gt; ca-certificates
  Package setuptools conflicts for:
  python=3.7 -&gt; pip -&gt; setuptools
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; setuptools
  Package python-dateutil conflicts for:
  pandas=0.22.0 -&gt; python-dateutil
  Package msgpack-python conflicts for:
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; cachecontrol -&gt; msgpack-python
  Package certifi conflicts for:
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; setuptools -&gt; certifi[version='&gt;=2016.09|&gt;=2017.4.17']
  python=3.7 -&gt; pip -&gt; setuptools -&gt; certifi[version='&gt;=2016.09']
  Package wincertstore conflicts for:
  pandas=0.22.0 -&gt; python[version='&gt;=3.5,&lt;3.6.0a0'] -&gt; pip -&gt; setuptools -&gt; wincertstore[version='&gt;=0.2']
  python=3.7 -&gt; pip -&gt; setuptools -&gt; wincertstore[version='&gt;=0.2']
  </code></pre>