Web e2e test fails

 Home e2e Test
[INFO]     ✗ should have a welcome message
[INFO]       - Failed: unknown error: call function result missing 'value'
[INFO]         (Session info: chrome=65.0.3325.146)
[INFO]         (Driver info: chromedriver=2.30.477691 (6ee44a7247c639c0703f291d320bdf05c1531b57),platform=Linux 4.14.12-041412-generic x86_64)
[INFO]         (Session info: chrome=65.0.3325.146)
[INFO]         (Driver info: chromedriver=2.30.477691 (6ee44a7247c639c0703f291d320bdf05c1531b57),platform=Linux 4.14.12-041412-generic x86_64)
[INFO]           at Object.checkLegacyResponse (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/error.js:546:15)
[INFO]           at parseHttpResponse (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/http.js:509:13)
[INFO]           at doSend.then.response (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/http.js:441:30)
[INFO]           at <anonymous>
[INFO]           at process._tickCallback (internal/process/next_tick.js:188:7)
[INFO]       From: Task: Protractor.get(http://localhost:8080/) - reset url
[INFO]           at Driver.schedule (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/webdriver.js:807:17)
[INFO]           at ProtractorBrowser.executeScriptWithDescription (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/protractor/built/browser.js:404:28)
[INFO]           at driver.controlFlow.execute.then.then.then (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/protractor/built/browser.js:679:25)
[INFO]           at ManagedPromise.invokeCallback_ (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/promise.js:1376:14)
[INFO]           at TaskQueue.execute_ (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/promise.js:3084:14)
[INFO]           at TaskQueue.executeNext_ (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/promise.js:3067:27)
[INFO]           at asyncRun (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/promise.js:2927:27)
[INFO]           at /home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/selenium-webdriver/lib/promise.js:668:7
[INFO]           at <anonymous>
[INFO]           at process._tickCallback (internal/process/next_tick.js:188:7)
[INFO]       From: Task: Run it("should have a welcome message") in control flow
[INFO]           at UserContext.<anonymous> (/home/travis/build/zjffdu/zeppelin/zeppelin-web/node_modules/jasminewd2/index.js:94:19)
[INFO]       From asynchronous test: 
[INFO]       Error
[INFO]           at Suite.<anonymous> (/home/travis/build/zjffdu/zeppelin/zeppelin-web/e2e/home.spec.js:2:3)
[INFO]           at Object.<anonymous> (/home/travis/build/zjffdu/zeppelin/zeppelin-web/e2e/home.spec.js:1:63)
[INFO]           at Module._compile (module.js:635:30)
[INFO]           at Object.Module._extensions..js (module.js:646:10)
[INFO]           at Module.load (module.js:554:32)
[INFO]           at tryModuleLoad (module.js:497:12)