mailer error

[daton89]

after install swig with npm i -S swig i got this error

➜  stripe-recurring-membership git:(master) ✗ npm start

> repo-repo@1.0.0 start /Users/tony/Workspace/stripe-recurring-membership
> node server.js

/Users/tony/Workspace/stripe-recurring-membership/node_modules/nodemailer/lib/mailer/index.js:45
        this.transporter.mailer = this;
                                ^

TypeError: Cannot set property 'mailer' of undefined
    at new Mail (/Users/tony/Workspace/stripe-recurring-membership/node_modules/nodemailer/lib/mailer/index.js:45:33)
    at Object.module.exports.createTransport (/Users/tony/Workspace/stripe-recurring-membership/node_modules/nodemailer/lib/nodemailer.js:52:14)
    at Object.<anonymous> (/Users/tony/Workspace/stripe-recurring-membership/server/middleware/email-helper.js:10:34)
    at Module._compile (module.js:635:30)
    at Object.Module._extensions..js (module.js:646:10)
    at Module.load (module.js:554:32)
    at tryModuleLoad (module.js:497:12)
    at Function.Module._load (module.js:489:3)
    at Module.require (module.js:579:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/tony/Workspace/stripe-recurring-membership/server/controllers/passwords-controller.js:10:28)
    at Module._compile (module.js:635:30)
    at Object.Module._extensions..js (module.js:646:10)
    at Module.load (module.js:554:32)
    at tryModuleLoad (module.js:497:12)
    at Function.Module._load (module.js:489:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! repo-repo@1.0.0 start: `node server.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the repo-repo@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.