MuonIDHltAlg - Check ifstream is_open() before using
Turns error
MuonIDHlt1Alg FATAL Standard std::exception is caught
MuonIDHlt1Alg ERROR [json.exception.parse_error.101] parse error at line 1, column 1: syntax error while parsing value - unexpected end of input; expected '[', '{', or a literal
into much more useful
MuonIDHlt1Alg ERROR Failed to open '/usera/jonesc/LHCbCMake/Feature/PARAM/ParamFiles/v8r999/data/MuonIDGlobal.json'