powershell - DSC, compiling a ps1 file into MOF -

i'm trying configure target node via dsc.
i've created .ps1 file dummy configuration; can see below; it's 1 of first examples find in dsc sites.
want compile .mof file. i've executed:

ps c:\var\dsc\configurations> . .\localhost.ps1 

but nothing. mof file doesn't appear , no error messages thrown. missing?

configuration fileresourcedemo { node "localhost" {     file directorycopy     {         ensure = "present"  # can set ensure "absent"         type = "directory" # default "file".         recurse = $true # ensure presence of subdirectories,         sourcepath = "c:\users\public\documents\dscdemo\demosource"         destinationpath = "c:\users\public\documents\dscdemo\demodestination"         }      log afterdirectorycopy     {         # message below gets written microsoft-windows-desired  state configuration/analytic log         message = "finished running file resource id directorycopy"         dependson = "[file]directorycopy" # means run "directorycopy"  first.     } } }  

the configuration keyword merely defines configuration (think of function keyword). after have execute it, calling function (it can have parameters, though yours not).

so if, @ end of .ps1 file add:

fileresourcedemo 

it execute right after defining it.

or, since dot sourcing file according question, can directly execute interactively typing fileresourcedemo prompt. should tab-complete.