Invalid or unexpected token error when starting fastboot server

[kushthedude]

We have an ember application using the ember-cli-fastboot. During enabling the fastboot on local and running the server.js produces a strange error :

/Users/kush/open-event-frontend/dist/assets/open-event-frontend-fastboot.js:1



SyntaxError: Invalid or unexpected token
    at new Script (vm.js:86:7)
    at VMSandbox.eval (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/vm-sandbox.js:13:22)
    at /Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/ember-app.js:197:15
    at Array.forEach (<anonymous>)
    at EmberApp.loadAppFiles (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/ember-app.js:194:18)
    at EmberApp.retrieveSandboxedApp (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/ember-app.js:235:10)
    at new EmberApp (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/ember-app.js:61:21)
    at FastBoot._buildEmberApp (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/index.js:114:17)
    at new FastBoot (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/node_modules/fastboot/src/index.js:52:10)
    at Worker.buildMiddleware (/Users/kush/open-event-frontend/node_modules/fastboot-app-server/src/worker.js:74:21)
[2020-01-15T20:39:14.944Z][m15711] worker exited with error code: 1
[2020-01-15T20:39:14.947Z][m15711] forked worker 15822
[2020-01-15T20:39:14.947Z][m15711] worker online

When I tried to see the file open-event-frontend-fastboot.js, It has :

It would be great if someone could confirm is the fastboot issue ?