silverstripe installation error “silverstripe/vendor-plugin 1.3.1 requires composer-plugin-api ^1.1 -> no matching package found”

Question

I am trying to install silverstripe but i am getting the following error. Your requirements could not be resolved to an installable set of packages.

Problem 1 - silverstripe/vendor-plugin 1.3.1 requires composer-plugin-api ^1.1 -> no matching package found. - silverstripe/vendor-plugin 1.3.1 requires composer-plugin-api ^1.1 -> no matching package found. - Installation request for silverstripe/vendor-plugin 1.3.1 -> satisfiable by silverstripe/vendor-plugin[1.3.1].

please help to resolve it.

Answer 1

It's fairly likely that you're using an older version of composer.

Update composer and try again:

composer selfupdate
composer install