Why browser.get method does not go to specified url?

I have a folder structure like this: project structure And I am following this tutorial My package.json file is like this: { “name”: “node_cucumber_e2e”, “version”: “1.0.1”, “description”: “Sample E2E by Bill to learn cucumber and protractor”, “main”: “index.js”, “scripts”: { “start”: “node index.js”, “start-driver”: “node .\\node_modules\\protractor\\bin\\webdriver-manager start”, “update-driver”: “node .\\node_modules\\protractor\\bin\\webdriver-manager update”, “protractor”: “node .\\node_modules\\protractor\\bin\\protractor configs/protractor.conf.js”…

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Can not call the solidity smart contract function from web3js

i am try to call a method in solidity smart contract through angular app. but i unable to call the method. can someone please help me. this is the error i get in console TypeError: this.contract.methods.hello is not a function at CertificateContractService.<anonymous> (certificate-contract.service.ts:32) at Generator.next (<anonymous>) at fulfilled (tslib.es6.js:70) at ZoneDelegate.invoke (zone-evergreen.js:359) at Object.onInvoke (core.js:39699)…

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