This is a trivial bug in G4DataQuestionaire.hh. The check for real surface data is wrong!! 99 case optical: 100 if(!getenv("G4LEDATA") ) 101 { 102 G4cout << "Data describing surface propeties for optical photons are needed."<<G4endl; "G4REALSURFACEDARA" instead of "G4LEDATA". BTW, not "Questionarie", but "Questionnaire"?
Hello, The problem is fixed. Thanks for pointed out. VI