hi, I am working with my class which contains some pointers to TArrayX. When I write it on a TTree I create a TBranch and I have two possibilities with the branch's split level . * with split level = 1. In this case I fill my TTree without problems but after that I can not read the TArrayX of my create TTree. (With ROOT 2.21/08 et 2.22/10). * with split level= 0. I can read the TArrayX with the old version (2.21/08) but with the new one (2.22/10) I have an error message Error in <TExMap::Add>: key 2 is not unique What could be the solution to work with the new version? Thanks in advance Maria MORA
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