“Updater application is not available” error

This article talks about the solution for the “updater application is not available” issue you might face when trying to update/install Adobe Commerce on-premises using the Web Setup Wizard.

Issue

The following message is displayed in the readiness check:

Affected products/versions

Solution

To resolve this issue, see if there is a <magento_root>/update directory that contains files and subdirectories. Otherwise, see Set up the updater in our developer documentation.