Jenkins build fails with "LCP.json with id "undefined" is not valid against the schema" error

Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM).

Issue

• Our new build is failing in Jenkins with the following error:

Failed to deploy the services in /var/jenkins_home/workspace/<workspace_name>/build on liferay.cloud.
Reason: Unexpected message when uploading services: 
LCP.json with id "undefined" is not valid against the schema

Environment

• Liferay PaaS

Resolution

• You should check your LCP.json files because a property might need to be relocated
• Most of the time the property is out of the environment's scope and should be placed in the "env": {} section, like
• From

"environments": {
   "infra": {
     "deploy": true,
     "PLUGINS_FORCE_UPGRADE": "true"
   }

• To

"environments": { 
   "infra": { 
     "deploy": true, 
     "env": { 
       "PLUGINS_FORCE_UPGRADE": "true" 
           } 
      } 
}