New Files element and Guid generation

[capricorn-15]

I tried to use the new Files element, but I get the following error:
error WIX0231: The component 'flsa.c3ZUaXLsqrJd.Kpsb1oSK3Skc' has a key file with path 'TARGETDIR.\SomeCompanyName\SomeProductName\reference\html\search\variables_9.js'. Since this path is not rooted in one of the standard directories (like ProgramFilesFolder), this component does not fit the criteria for having an automatically generated guid. (This error may also occur if a path contains a likely standard directory such as nesting a directory with name "Common Files" under ProgramFilesFolder.)

This is because there are no Guid attributes in the file components.

When I harvested via project file or with the good old heat.exe (switch "-gg") the Guid attributes have been generated.

My Files statement:

My project harvesting:

CompGroup_HarvestedFolder_Documentation Dir_Application true true wix.WixVarSrcFolder_Documentation

Btw, I have to install our software under "C:\CompanyName" instead of "C:\Program Files\CompanyName". This is a requirement and was not my decision.

Will there be a way to generate the Guids when using the new Files element?