Re: Failure in TTree filling

When this message is printed with teh CVS head version, you also get the following print:

 This error is symptomatic of a Tree created as a memory-resident Tree  Instead of doing:

    TTree *T = new TTree(...)
    TFile *f = new TFile(...)
 you should do:

    TFile *f = new TFile(...)
    TTree *T = new TTree(...)

Rene Brun

Alberto Pulvirenti wrote:
> Dear rooters,
>
> sometimes, while filling a TTree, I encountered this message:
>
> Error in <TTree::Fill>: Failed filling branch:matches.matches, nbytes=-1
>
> can someone explain me what does it mean? What mistake did I do while
> creating the code to fill that TTree?
> For completeness I must say that this TTree is filled with a branch
> made from a struct of primitive data types.
>
> Thanks,
>
> Alberto
>
> **************************************
> ----- Alberto Pulvirenti, Ph. D. -----
> Universita' di Catania,
> Dipartimento di Fisica e Astronomia
> Via Santa Sofia, 64
> I-95129, Catania, Italy
>
> Tel :+39-095-3785286
> **************************************
Received on Wed Jun 28 2006 - 17:53:15 MEST