[wix-users] SWID Tag input string was not in a correct format error from Light

[David Hary]

With 3.10.0.2026 and this code in <Project>:

<swid:Tag Regid='acme.com' InstallDirectory='TARGETDIR'/>

Light reports an error: Input string was not in a correct format.

Is there a file where I could find the offending string?