running a module with python binding, fails due to std::TTreeReaderArray<float>

[gkaratha]

Dear experts,

I face this very strange error [*] which does not seem to come from my code. I have a code that reads genParticles and sorts them according to their mother so to have the whole chain[**]. For that I use c++ worker with a python binding. The code was working fine up to thursday but since tomorrow while the code compiles it fails when i run nanopy command. So I started to make several checks and i commend it out all the logic (both in cpp and python) except the loading. It turns out that this line is responsible: ROOT.gROOT.ProcessLine(".L%s/interface/GenDecayCppWorker.h"%base)

What is important to know is that when I changed the loaded c++ from my code to a code that was already existing (mhtjuProducerCppWorker) [***], I still see exactly the same error . So I am not sure if that comes from my code anymore or it is a more general problem... Also in the error msg there is not a mention of my codes. Any ideas? Thanks in advance. If it is relevant i use CMSSW_10_4_0 with arch slc7_amd64_gcc700.

Talking to @peruzzim (thanks) he suggests it to report that and also gave me the correct thread.

Best regards,
George

[*] part of the lines
input_line_185:1:21: error: no class named 'TTreeReaderArray' in namespace 'std'
template class std::TTreeReaderArray;

*** Error in `python': free(): corrupted unsorted chunks: 0x00000000079e1010 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x81679)[0x7ff2b3514679]
/cvmfs/cms.cern.ch/slc7_amd64_gcc700/cms/cmssw/CMSSW_10_4_0/external/slc7_amd64_gcc700/lib/libTreePlayer.so(_ZNSt10_HashtableINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_St10unique_ptrIN4ROOT8Internal17TNamedBranchProxyESt14default_deleteISB_EEESaISF_ENSt8__detail10_Select1stESt8equal_toIS5_ESt4hashIS5_ENSH_18_Mod_range_hashingENSH_20_Default_ranged_hashENSH_20_Prime_rehash_policyENSH_17_Hashtable_traitsILb1ELb0ELb1EEEED2Ev+0x59)[0x7ff2a1068309]

[**] https://github.com/gkaratha/nanoAOD-tools/blob/NanoToolsBPark/python/postprocessing/modules/bpark/genDecayConstructor.py

[***] ROOT.gROOT.ProcessLine(".L %s/interface/mhtjuProducerCppWorker.h"%base)