problem opening reference building model idf files in OpenStudio
I am trying to import the idf files of DOE's reference building models into OpenStudio 1.12.0 but I get the error message: "File is not valid to draft strictness". I read in other posts that this is a common issue with the idf files but in my case no info (HVAC, construction, schedule, nothing) is imported into OpenStudio. Any help would be appreciated.
Is there a place to directly download the OSM versions of DOE's idf files?