Error: no strategy registered under name: github
    at attempt (/src/node_modules/passport/lib/passport/middleware/authenticate.js:237:37)
    at Passport.authenticate (/src/node_modules/passport/lib/passport/middleware/authenticate.js:244:7)
    at callbacks (/src/node_modules/express/lib/router/index.js:161:37)
    at module.exports.Observable.extend.github.passport.authenticate.scope (/src/lib/handlers/session.js:477:7)
    at callbacks (/src/node_modules/express/lib/router/index.js:161:37)
    at param (/src/node_modules/express/lib/router/index.js:135:11)
    at pass (/src/node_modules/express/lib/router/index.js:142:5)
    at nextRoute (/src/node_modules/express/lib/router/index.js:100:7)
    at callbacks (/src/node_modules/express/lib/router/index.js:156:11)
    at nextRoute (/src/lib/routes.js:41:3)