<!-- IMPORTANT! YOU MUST FOLLOW THESE INSTRUCTIONS OR YOUR ISSUE WILL BE CLOSED. Thank you for contributing to the Angular and Firebase communities! Have a usage question? ======================= We get lots of those and we love helping you, but GitHub is not the best place for them and they will be closed. Here are some resources to get help: - Go through the Developer's Guide: https://github.com/angular/angularfire2#developer-guide If the official documentation doesn't help, try asking through our officially supported channels: - Firebase Google Group: https://groups.google.com/forum/#!forum/firebase-talk - Stack Overflow: https://stackoverflow.com/questions/tagged/angular (include the firebase and angularfire tags, too!) *Please avoid double posting across multiple channels!* Think you found a bug? ======================= Yeah, we're definitely not perfect! Please use the bug report template below and include a minimal repro when opening the issue. Have a feature request? ======================== Great, we love hearing how we can improve our products! Remove the template below and provide an explanation of your feature request. Provide code samples if applicable. Try to think about what it will allow you to do that you can't do today? How will it make current workarounds straightforward? What potential bugs and edge cases does it help to avoid? --> ### Version info <!-- What versions of the following libraries are you using? Note that your issue may already be fixed in the latest versions. --> **Angular:** 5.1.1 **Firebase:** 4.8.1 **AngularFire:** 5.0.0-rc.4 **Other (e.g. Ionic/Cordova, Node, browser, operating system):** Other latest; OS: macOS latest when submitting ### How to reproduce these conditions npm start failed to compile **Failing test unit, Plunkr, or JSFiddle demonstrating the problem** <!-- Provide a failing test unit, or create a minimal, complete, and verifiable example (http://stackoverflow.com/help/mcve) using either Plunker (http://plnkr.co/) or JSFiddle (https://jsfiddle.net/). --> **Steps to set up and reproduce** <!-- detailed instructions to run your minimal repro or to recreate the environment --> **Sample data and security rules** <-- include/attach/link to some json sample data (or provide credentials to a sanitized, test Firebase project) --> ### Debug output ** Errors in the JavaScript console ** Can't resolve '@firebase/polyfill' in ... Can't resolve '@firebase/firestore' Can't resolve '@firebase/database' Can't resolve '@firebase/auth' Can't resolve '@firebase/app' in '/.../node_modules/firebase/XXXX' @ ./node_modules/firebase/auth/index.js 17:0-25 @ ./node_modules/angularfire2/auth/auth.module.js @ ./node_modules/angularfire2/auth/public_api.js @ ./node_modules/angularfire2/auth/index.js @ ./src/app/app.module.ngfactory.js @ ./src/main.browser.ts @ multi (webpack)-dev-server/client?http://0.0.0.0:8080 ./src/main.browser.ts ** Output from `firebase.database().enableLogging(true);` ** ** Screenshots ** ### Expected behavior <!-- What is the expected behavior? --> ### Actual behavior <!-- What is the actual behavior? -->