Ember SyntaxError Unexpected Token; NodeJS Package Related

I am having an issue with Ember building. I have tried doing npm clean cache, deleting the node_modules folder, and then npm install. I have also tried copying the ember-cli and ember-cli-htmlbars-inline-precompile folders from sources that I know build correctly and are using the same versions.

SyntaxError: Unexpected token :
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Project.require (*****\node_modules\ember-cli\lib\models\project.js:280:12)
    at Project.config (*****\node_modules\ember-cli\lib\models\project.js:198:26)
    at Class.module.exports.projectConfig (*****\node_modules\ember-cli-htmlbars-inline-precompile\index.js:103:25)