Using property in File element's Source property in WiX

Question

I am trying to use Property value in Source attribute of File element, but getting this error:

error LGHT0103 : The system cannot find the file '[MYPROPERTY]'

Here is how property defined and used:

<Property Id="MYPROPERTY" Secure="yes" Value="myfile.xml" />
    ...
<File Id="MyFileId" Name="myfile.xml" Source="SubFolder\[MYPROPERTY]" KeyPath="yes" />

What I am doing wrong?

Stefan Wanitzek · Accepted Answer · 2016-08-25 08:09:05Z

7

The property defined via the property-Tag creates a public property in the MSI-Package which is a Windows Installer concept.

You are refering to this variable in the Source-Attribute of the File-Tag but that isn't the way you can use this property. You can only use them at runtime (e.g. to use them in Registry-Keys you create during the installation) but the Source-Attribut is resolved via compile-time of the package.

The Source-attribut of the File-Tag requires a path to variable that points to a location on the developer machine.

I assume you are looking for Wix precompiler directives:

<?define MyProperty = "C:\myfile.xml" ?>

<File Id="MyFileId" Name="myfile.xml" Source="$(var.MyProperty)" KeyPath="yes" />

edited Aug 25, 2016 at 8:09

answered Nov 25, 2015 at 17:29

Stefan Wanitzek

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