Angular 2 Router Animation - Module '@angular/platform-browser/animations' Not Found

I've been checking out the Angular 2 Routing and Navigation example provided in this link: https://plnkr.co/edit/I4ArEQTniO7MJtfzpBWl?p=info.

Upon running the transpiler, I encountered an error message stating: "client/app/app.module.ts(5,41): error TS2307: Cannot find module '@angular/platform-browser/animations'."

Referring to my systemjs.config.js (as displayed below), I expected the module '@angular/platform-browser/animations' to be located in the file "platform-browser-animations.umd.js" within node_modules/@angular/platform-browser/bundles, but it's not present.

//systemjs.config.js
(function (global) {
  System.config({
    paths: {
  // paths serve as alias
  'npm:': 'node_modules/'
   },
  // map tells the System loader where to look for things
  map: {
  // our app is within the app folder
  app: 'app',

  '@angular/animations': 'npm:@angular/animations/bundles/animations.umd.js',
  '@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.umd.js',
  '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
  ...
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
  ...
}
});
})(this);

Trying to resolve by installing the missing frameworks through npm resulted in an unmet dependency error message:

+-- UNMET PEER DEPENDENCY @angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="89eae6e4e4e6e7c9bba7bda7b1">[email protected]</a>
...

Even after attempting to install the required versions of the dependencies, the same unmet dependency issue persisted.

...

It seems that the problem might be related to the animations version. If so, how can I uninstall the current version and which compatible version should I install given the @angular/core version I have, 2.4.8? If this isn't the root cause, how do I go about installing the missing file, @angular/platform-browser/bundles/platform-browser-animations.umd.js?

Answer №1

After spending hours researching, I struggled to find a compatible version of @angular/animations for my @angular/core versions which ranged from 2.4.0-2.4.8. Desperate for a solution, I stumbled upon a post discussing the compatibility of Angular 2 modules, except for the router. Taking a leap of faith, I decided to stick with @angular/animations 2.4.8 and updated all dependencies in my package.json file accordingly. To my dismay, npm install failed due to issues with the animations module.

But then, a glimmer of hope shone through when I discovered a blog post guiding users on updating to Angular 4.0. The post revealed that the elusive animations module I had been seeking was only available with the upgrade. Following the instructions provided for Windows users, I successfully updated my application and it now runs smoothly, closely resembling the plunker example shared in the post. The backward compatibility assurance gave me the confidence to proceed with the update.

The process of upgrading to Angular 4 seemed daunting at first, but turned out to be as simple as updating the Angular dependencies to their latest versions, with special attention to the animations module. Most scenarios should work seamlessly with this approach.

For Linux/Mac users:

npm install @angular/{common,compiler,compiler-cli,core,forms,http,platform-browser,platform-browser-dynamic,platform-server,router,animations}@latest typescript@latest --save

And for Windows users:

npm install @angular/common@latest @angular/compiler@latest @angular/compiler-cli@latest @angular/core@latest @angular/forms@latest @angular/http@latest @angular/platform-browser@latest @angular/platform-browser-dynamic@latest @angular/platform-server@latest @angular/router@latest @angular/animations@latest typescript@latest --save

Answer №2

Follow the steps below

Step-1

$ delete node_modules directory

$ clear npm cache

Step -2

$ install latest version of @angular/animations --save

$ run npm install command

This solution worked for me

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