[Nant-users] file::exists() problem

[Joe Uchytil]

How do I use the <IF> task to check for the existence of a file where the file name is stored in a property?   The documentation shows <if test=”${not file::exists(‘output.xlm’)}”>   ... </if>   but trying to do the following does not seem to work. <property name=’file.to.check’ value=’output.xml’> <if test=”${not file::exists(‘${file.to.check}’)}”> </if>   It appears that the ${file.to.check} is not expanded but taken literally   Any ideas?   Joe Uchytil