Delivery Manager Tool - Extraction - Warning - Tree dump file does not exist Discovered projects file discovery CastProjects not found in package Selected projects file selection CastProjects not found in package

When doing the package extraction in DMT received the following warnings in the different steps:   

Scan: 2016-02-02 10:10:47.266 WARNING     Tree dump file does not exist: X:\Delivery\data{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\sources.CastSourceTreeDump 

Discovery: 2016-02-02 10:11:00.636 WARNING     Discovered projects file 'discovery.CastProjects' not found in package X:\Delivery\data{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\discovery.CastProjects 

Selection: 2016-02-02 10:11:13.724 WARNING     Selected projects file 'selection.CastProjects' not found in package X:\Delivery\data{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\{xxx-xxxx-xxxx-xxxx-xxxx}\selection.CastProjects  

1. Migrate the databases.
2. Add a new version (cloned from the migrated one) from CMS.
3. Run the package extraction and the warnings will appear.

The issue is raised due to empty package folders inside the migrated version Delivery folder.

The solution is to remove the empty package folders present in the migrated version Delivery folder.

1. Go to Delivery folder path " X:\Delivery\data{<Application-uuid>}\{<version-uuid>}\"
2. Find the empty folders.
3. Delete the empty folders. (Note: Delete only the folders, do not delete the XML files)
4. Run the DMT and package it.

Ticket # 4540