This MsBuild Task creates an empty license.licx before the build if it is needed but not present.

Background information see: DevExpress Blog Entry

By installing the NuGet package, an MsBuild Task named CreateEmptyLicense is automatically added to the project, which checks if the project uses a license.licx. If this file is needed but not present, the build task automatically creates an empty file under $(ProjectDir)\Resources\license.licx.