Downgrade Ionic Framework Version: 2.0.0-rc.3 to beta
<p>I am using <code>Ionic 2</code>, and would like to downgrade the <code>Ionic Framework Version: 2.0.0-rc.3</code> to the <code>beta</code> version.</p>

<pre><code>ionic info

Your system information:

Cordova CLI: 6.4.0
Ionic Framework Version: 2.0.0-rc.3
Ionic CLI Version: 2.0.0-beta.31
Ionic App Lib Version: 2.0.0-beta.17
OS:
Node Version: v6.2.2
</code></pre>

<p>I have tried the following:</p>

<pre><code>npm uninstall -g ionic
npm install -g ionic@2.0.0-beta.31
</code></pre>

<p>But as you can see, all this did was downgrade the <code>Ionic CLI Version</code>. </p>

<p><strong>Question</strong></p>

<p>How do I downgrade the <code>Ionic Framework Version</code>?</p>

<p>Any help appreciated.</p>

<p><strong>UPDATE</strong></p>

<p>My <code>package.json</code> has the folliwng:</p>

<p><code>"ionic-angular": "^2.0.0-rc.3",</code></p>

<p>Do I need to change this to:</p>

<p><code>"ionic-angular": "^2.0.0-beta.31",</code></p>

<p>Then do I run something to make the change take affect?</p>

<p><strong>UPDATE</strong></p>

<p>I tried deleting <code>node_modules</code> (from <code>...\AppData\Roaming\npm</code>), but now I get:</p>

<pre><code>npm install
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.0.15
npm WARN @angular/core@2.2.4 requires a peer of rxjs@5.0.0-beta.12 but none was installed.
npm WARN @angular/core@2.2.4 requires a peer of zone.js@^0.6.21 but none was installed.
npm WARN @angular/http@2.2.4 requires a peer of rxjs@5.0.0-beta.12 but none was installed.
npm WARN @angular/platform-browser@2.2.4 requires a peer of @angular/common@2.2.4 but none was installed.
npm WARN @angular/platform-browser-dynamic@2.2.4 requires a peer of @angular/common@2.2.4 but none was installed.
npm WARN @ionic/cloud-angular@0.4.0 requires a peer of @angular/core@&gt;=2.0.0-rc.0 &lt;2.0.0-rc.5 but none was installed.
npm WARN accounts-phone@0.0.1 requires a peer of meteor-client-side@~0.2.3 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/common@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/compiler@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/compiler-cli@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/core@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/forms@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/http@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/platform-browser@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/platform-browser-dynamic@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of @angular/platform-server@2.1.1 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of rxjs@5.0.0-beta.12 but none was installed.
npm WARN ionic-angular@2.0.0-rc.3 requires a peer of zone.js@~0.6.26 but none was installed.
npm WARN theWhoZoo@ No repository field.
npm WARN theWhoZoo@ No license field.
</code></pre>

<p>There is no <code>node_modules</code> folder now.</p>