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Protractor `elementExplorer` debugger and element explorer cannot be used for Node.js 8+ since it relied on `_debugger` module. In protractor version 5, this resulted in the below error: ``` ** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ ** : Compiled successfully. [10:25:35] I/direct - Using ChromeDriver directly... [10:25:37] I/protractor - [10:25:37] I/protractor - ------- Element Explorer ------- [10:25:37] I/protractor - Starting WebDriver debugger in a child process. Element Explorer is still beta, please report issues at github.com/angular/protractor [10:25:37] I/protractor - [10:25:37] I/protractor - Type <tab> to see a list of locator strategies. [10:25:37] I/protractor - Use the `list` helper function to find elements by strategy: [10:25:37] I/protractor - e.g., list(by.binding('')) gets all bindings. [10:25:37] I/protractor - *********************************************************** * WARNING: _debugger module not available on Node.js 8 * * and higher. * * * * Use 'debugger' keyword instead: * * https://goo.gl/MvWqFh * *********************************************************** /Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/debuggerCommons.js:14 throw e; ^ Error: Cannot find module '_debugger' Require stack: - /Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/debuggerCommons.js - /Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/clients/explorer.js at Function.Module._resolveFilename (internal/modules/cjs/loader.js:980:15) at Function.Module._load (internal/modules/cjs/loader.js:862:27) at Module.require (internal/modules/cjs/loader.js:1042:19) at require (internal/modules/cjs/helpers.js:77:18) at Object.<anonymous> (/Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/debuggerCommons.js:3:18) at Module._compile (internal/modules/cjs/loader.js:1156:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1176:10) at Module.load (internal/modules/cjs/loader.js:1000:32) at Function.Module._load (internal/modules/cjs/loader.js:899:14) at Module.require (internal/modules/cjs/loader.js:1042:19) { code: 'MODULE_NOT_FOUND', requireStack: [ '/Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/debuggerCommons.js', '/Users/alanagius/cli-repos/demo-several/node_modules/protractor/built/debugger/clients/explorer.js' ] } ``` but in protractor version 7, this logic was removed. BREAKING CHANGE: Protractor builder elementExplorer option has been removed. This was not compatable with the Node.Js versions that the Angular CLI supports. See: https://github.com/angular/protractor/blob/master/docs/debugging.md#enabled-control-flow for an alternative debugging methods.