Hi Matt, Thanks for the report. I'll look into it and let you know what I find. Clearly the only work-around right now is to recreate your fitting model from scratch in the new Athena. Admittedly not a very satisfying answer,... B ________________________________________ From: ifeffit-bounces@millenia.cars.aps.anl.gov [ifeffit-bounces@millenia.cars.aps.anl.gov] on behalf of Matt Frith [matt.frith@gmail.com] Sent: Friday, September 07, 2012 12:01 AM To: ifeffit@millenia.cars.aps.anl.gov Subject: [Ifeffit] Problem with Demeter Artemis 0.9.10 Hi All, I have come across an bug with Demeter 0.9.10. When I go to open an old format Artemis project file I will see, "Converting old-style project file to Demeter serialization" written in the progress bar, and then the program will quit without opening the file. The problem occurs on both 32 and 64bit Windows 7. I uninstalled the program and reinstalled Demeter 0.9.9 and there are no issues with 0.9.9. The dartemis.log contains: Can't locate object method "inp_is_feff8" via package "Demeter::Feff::External" at C:/strawberry/perl/site/lib/Demeter/Fit/Horae.pm line 110. I hope this is helpful. It seems to be similar to the problem posted by Riamundo, and I hope that I have not missed a previously posted solution. Attached is one of the project files that I have used. Sincerely, Matt Frith