The application deployment has not completed successfully if you receive an "Error: Failure in adding an application to Local Appeon Server" message. This typically occurs during Task 3: application deployment.
Cause A: Appeon Server is either not running or cannot be found by Appeon Developer.
Solution A: Restart Appeon Server and click Retry to re-deploy the application.
Cause B: You did not specify correct deployment username and password in the Appeon Server profile.
Solution B: Check with the AEM admin whether the deployment security is on for the Appeon Server, and what are the accounts allowed to deploy applications to the Appeon Server. Specify an authorized deployment username and password in the Appeon Server profile, and make sure "Test Appeon Server Settings" is successful.