title: Error with OAuth2Strategy that requires a CLIENTID
body: <p>I have some error when I start my app :</p>
  
  <pre><code>/api # yarn start
  yarn run v1.21.1
  $ nodemon server-express.js
  [nodemon] 1.19.4
  [nodemon] to restart at any time, enter `rs`
  [nodemon] watching dir(s): *.*
  [nodemon] watching extensions: js,mjs,json
  [nodemon] starting `node server-express.js`
  /api/node_modules/passport-oauth2/lib/strategy.js:86
    if (!options.clientID) { throw new TypeError('OAuth2Strategy requires a clientID option'); }
                             ^
  
  TypeError: OAuth2Strategy requires a clientID option
      at Strategy.OAuth2Strategy (/api/node_modules/passport-oauth2/lib/strategy.js:86:34)
      at new Strategy (/api/node_modules/passport-google-oauth20/lib/strategy.js:52:18)
      at Object.&lt;anonymous&gt; (/api/helpers/authHelper.js:26:5)
      at Module._compile (internal/modules/cjs/loader.js:1139:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1159:10)
      at Module.load (internal/modules/cjs/loader.js:988:32)
      at Function.Module._load (internal/modules/cjs/loader.js:896:14)
      at Module.require (internal/modules/cjs/loader.js:1028:19)
      at require (internal/modules/cjs/helpers.js:72:18)
      at Object.&lt;anonymous&gt; (/api/server-express.js:13:23)
      at Module._compile (internal/modules/cjs/loader.js:1139:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1159:10)
      at Module.load (internal/modules/cjs/loader.js:988:32)
      at Function.Module._load (internal/modules/cjs/loader.js:896:14)
      at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
      at internal/main/run_main_module.js:17:47
  [nodemon] app crashed - waiting for file changes before starting...
  
  </code></pre>
  
  <p>This is my .env file:</p>
  
  <pre><code># NODE TODO
  NODE_ENV=production
  PORT=3001
  HOST=localhost
  # MONGO TODO
  MONGO_USER=...
  MONGO_DB=....
  MONGO_PASS=....
  MONGO_HOST=localhost
  #GOOGLE_AUTH TODO
  GOOGLE_CLIENTID = "....-......apps.googleusercontent.com"
  GOOGLE_CLIENTSECRET = ".....-....."
  GOOGLE_REDIRECT = "http://localhost:3001/auth/google/callback"
  #FACEBOOK_AUTH TODO
  FACEBOOK_CLIENTID = ....
  FACEBOOK_CLIENTSECRET = "....."
  FACEBOOK_CALLBACKURL = "http://localhost:3001/auth/facebook/callback"
  FACEBOOK_TEST_EMAIL = "s....@gmail.com"
  #LOCAL_URL TODO
  CLIENT = "localhost:3000"
  CLIENTURL = "http://localhost:3000"
  SCHEMES = "http://"
  SERVERAPI = "http://localhost:3001"
  #GMAIL
  SECRETKEY = ".....="
  GMAILPSW = "....!"
  SUPPORTEMAIL = "...@gmail.com"
  #JWT
  JWTSECRET = "...."
  #COOKIE
  COOKIEKEY = "...."
  </code></pre>
  
  <p>How can I resolve that?</p>