The package 'TA-VMW-FieldExtractions' contains the search time extractions for use with the Splunk IT Service Intelligence Virtualization Module and the Splunk App for VMware. For Splunk Add-on for VMware v4.0.2 or below, the package was part of the Splunk Add-on for VMware package. In order to make the Splunk Add-on for VMware compatible with Self-service installation in cloud environments, the package 'TA-VMW-FieldExtractions' has been removed from the add-on package and published as an individual Splunkbase add-on as 'Splunk Add-on for VMware Extractions' package.
See Install and Configure Splunk Add-on for VMware Extractions (Link: 'Installation and Configure' section of Splunk Add-on for VMware Extractions) to see the dependency TAs and installation instructions.