Nested sc.variables in Unicorn configuration

Question

I have some Unicorn configuration files which use a specific $variable for the physicalRootPath:

physicalRootPath="$(sourceFolder)\foundation\Serialization\Serialization"

Now I would like to have the $sourceFolder variable be dependent of the Sitecore standard $dataFolder variable. So I have defined:

<sc.variable name="sourceFolderPublic" value="$(dataFolder)\Serialization" />

But when I run /unicorn.aspx I get the following error: It seems the $(dataFolder) variable is not filled in?

I've narrowed it down even further. In the root Sitecore.config I have directly defined the following config and it works: But when I use this it doesn't work (crash) This is the stacktrace

Answer 1

I'm hoping you already solved this, but I think I see the problem:

physicalRootPath="$(sourceFolder)\foundation\Serialization\Serialization"

This is your configuration for the physicalRootPath - note that your variable is called sourceFolder

This is your definition for your variable:

<sc.variable name="sourceFolderPublic" value="$(dataFolder)\Serialization" />

Note that you have called that sourceFolderPublic - make these 2 variables match and it should work ok.

Answer 2

I performed something similar to what you're trying to achieve and it worked fine. The "datafolder" variable was replaced accordingly. Can you check your ShowConfig.aspx and see if it's being applied. You should see the updated targetDataStore's physicalRoot. If you still see the "dataFolder" variable, then it's likely not finding it.