not a TStreamerInfo object

Dear root community

i fill some objects in a TFile using a compiled program

But when afterwards, i open the produced file with root, i obtain this : TFile f("myfile.root")
-->

Warning in <TFile::ReadStreamerInfo>: myfile.root: not a TStreamerInfo object

is it a problem that i could ignore ?
Anyway, even if this is a warning, would you know where it is coming from ?
(i guess i must have done something not conventionnal somewhere)

thank you Received on Sat Sep 11 2010 - 21:45:24 CEST