title: AttributeError: module 'pyparsing' has no attribute 'downcaseTokens' rasa
body: <p>I am facing a problem working with rasa, i can't run or train or do anything because below error.</p>
  <p>Traceback (most recent call last):
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\runpy.py&quot;, line 193, in <em>run_module_as_main
  &quot;<strong>main</strong>&quot;, mod_spec)
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\runpy.py&quot;, line 85, in <em>run_code
  exec(code, run_globals)
  File &quot;C:\Users\Dell\anaconda3\envs\rasanew\Scripts\rasa.exe_<em>main</em></em>.py&quot;, line 7, in 
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa_<em>main</em></em>.py&quot;, line 118, in main
  cmdline_arguments.func(cmdline_arguments)
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\cli\scaffold.py&quot;, line 235, in run
  init_project(args, path)
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\cli\scaffold.py&quot;, line 130, in init_project
  print_train_or_instructions(args, path)
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\cli\scaffold.py&quot;, line 69, in print_train_or_instructions
  training_result = rasa.train(domain, config, training_files, output)
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\api.py&quot;, line 106, in train
  from rasa.model_training import train_async
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\model_training.py&quot;, line 39, in 
  from rasa.core.agent import Agent
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\core\agent.py&quot;, line 16, in 
  from rasa.core.channels.channel import OutputChannel, UserMessage
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\core\channels_<em>init</em>_.py&quot;, line 26, in 
  from rasa.core.channels.hangouts import HangoutsInput  # noqa: F401
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\rasa\core\channels\hangouts.py&quot;, line 9, in 
  from oauth2client import client
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\oauth2client\client.py&quot;, line 39, in 
  from oauth2client import transport
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\oauth2client\transport.py&quot;, line 17, in 
  import httplib2
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\httplib2_<em>init</em>_.py&quot;, line 52, in 
  from . import auth
  File &quot;c:\users\dell\anaconda3\envs\rasanew\lib\site-packages\httplib2\auth.py&quot;, line 20, in 
  auth_param_name = token.copy().setName(&quot;auth-param-name&quot;).addParseAction(pp.downcaseTokens)
  AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'</p>