export default class Login_pageobj {

constructor() {
    //userName
    this.enterUserName = element(by.xpath('//input[@id="username"]'));

    //Password
    this.enterPassword = element(by.xpath('//input[@id="password"]'));

    //Login Button
    this.clickLoginBtn = element(by.buttonText('LOGIN'));

    //invalid UserName Password Error
    this.inValErrMsg = element(by.xpath('//div[@class="subtext"]'));
}

//Please enter a user name (required). method
isDisplyedUserNameErrorMsg() {...}

import Login_pageobj from '../ES6_pageobj/login_pageobj';

describe('Login Page Validation', function() {


it('Launch Commercial URL',function(){
    browser.get('http://applicationurl');
    browser.manage().window().maximize();
    expect(browser.getTitle()).toBe('LoginWeb');
});

it('Login Button should Disabled',function(){
    console.log('----------------------------------------------------');
    let lgin_pgobj = new login_pageobj();
    lgin_pgobj.verifyLgnBtnEnabled();//***unable to access this method***
});
});

Debugging with inspector protocol because Node.js v8.9.1 was detected.
node --inspect-brk=23169 node_modulesprotractorbinprotractor
e:CommercialPOC/conf.js --suite es6
Debugger listening on ws://127.0.0.1:23169/e3dfd326-8468-4a3a-a2e3-3094d97c5571
(node:4708) [DEP0022] DeprecationWarning: os.tmpDir() is deprecated. Use os.tmpdir() instead.
(node:4708) [DEP0022] DeprecationWarning: os.tmpDir() is deprecated. Use os.tmpdir() instead.
warning.js:18
[22:00:06] I/launcher - Running 1 instances of WebDriver
logger.js:155
[22:00:06] I/direct - Using ChromeDriver directly...
logger.js:155
null
conf.js:48
[22:00:25] E/launcher - Error:
e:commercialPOCES6_moduleScenariosLogin_spec.js:1
logger.js:155
(function (exports, require, module, __filename, __dirname) { import
Login_pageobj from '../ES6_pageobj/login_pageobj';
                                                          ^^^^^^
SyntaxError: Unexpected token import
at createScript (vm.js:80:10)
at Object.runInThisContext (vm.js:139:10)
at Module._compile (module.js:599:28)
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 e:CommercialPOCnode_modulesjasminelibjasmine.js:93:5
[22:00:25] E/launcher - Process exited with error code 100