Getting Started Error

<%- if @topic_view.topic.tags.present? %>
<%= t 'js.tagging.tags' %>: <%- @topic_view.topic.tags.each do |t| %> <%= t %> <%- end %>
<% end %>

After installing php and composer, I tried creating a project. But I keep getting this error.

Problem 1
- silverstripe/framework[4.0.0, …, 4.8.0] require ext-intl * -> it is missing from your system. Install or enable PHP’s intl extension.
- silverstripe/blog 3.7.0 requires silverstripe/asset-admin ^1.0 -> satisfiable by silverstripe/asset-admin[1.0.0, …, 1.8.0].
- silverstripe/asset-admin[1.5.1, …, 1.8.0] require silverstripe/framework ^4.5 -> satisfiable by silverstripe/framework[4.5.0, …, 4.8.0].
- silverstripe/asset-admin[1.0.1, …, 1.5.0] require silverstripe/framework ^4 -> satisfiable by silverstripe/framework[4.0.0, …, 4.8.0].
- silverstripe/asset-admin 1.0.0 requires silverstripe/framework ^4@dev -> satisfiable by silverstripe/framework[4.0.0, …, 4.8.0].
- Root composer.json requires silverstripe/blog ^3.7 -> satisfiable by silverstripe/blog[3.7.0].

The root of the issue is that you seem to be missing the php-intl extension from your system. The exact solution will depend on what platform you’re setting up… if it’s a local machine, you should be able to find instructions online… if it’s on commercial hosting then you’ll possibly need to contact your provider to get the extension enabled.