npm start not working

[sjcotto]

just cloned the repo and the npm install && npm start is not working, receiving the following error

> copyfiles -f examples/bandwidthconstraints/src/helpers.js examples/bandwidthconstraints/public && browserify examples/bandwidthconstraints/src/index.js > examples/bandwidthconstraints/public/index.js

Error: Parsing file /Users/user/projects/goshops/video-quickstart-js/node_modules/twilio-video/es5/dynamicImport.js: Unexpected token (8:9)
    at Deps.parseDeps (/Users/user/projects/goshops/video-quickstart-js/node_modules/module-deps/index.js:481:28)
    at getDeps (/Users/user/projects/goshops/video-quickstart-js/node_modules/module-deps/index.js:414:40)
    at /Users/user/projects/goshops/video-quickstart-js/node_modules/module-deps/index.js:398:32
    at ConcatStream.<anonymous> (/Users/user/projects/goshops/video-quickstart-js/node_modules/concat-stream/index.js:36:43)

tried with differents nodejs versions