Hi On Mon, 10 Dec 2001, Valeri Fine wrote: > Hello Rene, > > > We intend to release Root version 3.02/06 this week. This will be the PRO > > release. > > He have discovered several problems with the last version of ROOT from CVS > > 1. We can not read back our files written half year ago (with ROOT 3.00.06) > We have not had any problem to read them with ROOT versions 3.02.00 / 01 Could you be more explicit? I cannot do anything with just this info. > 2. We can not use TChain to read several TTrees' in row (See Bill Love's report) > The macro crashes occasionally I am waiting from Bill a session where he can reproduce the problem. > 3. We can not read the new files with TVolume objects, > but we can read the old versions of there files though. TVolume has not been modified in version 3.02. > > We are working to understand the reasons of these new problems and will appreciate you > will wait a little with your release. Why are you reporting these problems only now? > > Have you any idea what has happened with ROOT i/o recently, that may have affected the > backward compatibility ? So far, you are the only one complaining. If there are other people with the same experience, please let me know. When you encounter an I/O problem, I suggest the following procedure: Set gDebug=2; before reading or writing. The I/O functions in TStreamerInfo will print one line for each data member of a class being read/written. It also shows the persistent class definition. This should help you to localize the problem. Rene Brun > > With my regards, Valeri > ----- > Dr.Valeri Fine > STAR/US Atlas E-mail: fine@bnl.gov > Brookhaven National Lab Phone: +1 631 344 7806 > Upton, NY 11973-5000 FAX: +1 631 344 4206 > USA > > > >
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