When building a double clickable app with 4D the developer must add the licenses to the Project XML File prior to building the app. Typically, for a non-oem singleuser application the developer would add the 4DDP and 4UUD licenses would need to be added.

It is important to note that when building with an R-release, the liceses added to the Project XML File must be the R-variant license. These liceses are identified on disk by their name starting with an R-

For example, if the normal license file on disk is 4UUDUUS001123456789.license4d then the R-variant license would typically be saved as R-4UUDUUS001123456789.license4d

If the licenses are not added to the project XML file properly then an error is presented during the build application process.