im trying hard to deploy Vue.js on herokuapp, im followed this tutorial :https://medium.com/netscape/deploying-a-vue-js-2-x-app-to-heroku-in-5-steps-tutorial-a69845ace489 but when in browse on my website it made me a some error like this :

CLI return me that :

On my package.json, i deliberately erase the build.js because i doesen't have any file named like this... it possibly that but if add this, it even worse is.

package.json :