[wix-users] AllowDuplicateDirectoryIds build error

robert_yang at agilent.com robert_yang at agilent.com
Mon May 8 15:10:02 PDT 2017

Hi, I just started converting one of our 3.10.3 projects to and am seeing the following error messages :

c:\WixVersions\Wix3.11.0.1701\wix2010.targets(2439,7): error MSB4064: The "AllowDuplicateDirectoryIds" parameter is not supported by the "Light" task. Verify the parameter exists on the task, and it is a settable public instance property.
c:\WixVersions\Wix3.11.0.1701\wix2010.targets(2435,5): error MSB4063: The "Light" task could not be initialized with its input parameters.

The .wixproj project file contains the following :


This is so we can build Wix installers from an automated process (we've been doing this for a while), as per this help page :


Any idea what might be wrong or how to fix it ?

Thanks !

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