Event Streams installation reports Blocked status

Symptoms

When installing a new instance of Event Streams on an OpenShift Container Platform cluster, installation fails with status of the Event Streams instance as Blocked.

The following condition message is displayed in the status of the instance:

This instance requires Foundational Services version 3.19.0 or later 3.x fix releases. 
Install the required version of the Foundational Services operator as described in https://ibm.biz/es-cpfs-installation. 
This instance will remain in the `Blocked` status until the correct operator version is installed.

Causes

This error occurs because IBM Cloud Pak foundational services is not installed in your cluster. IBM Cloud Pak foundational services is a prerequisite to install an instance of Event Streams.

Resolving the problem

Install IBM Cloud Pak foundational services before installing an instance of Event Streams.