ROOT error

ROOT
1

Hello ROOTers,
I am getting an error as follows, can you please help me to understand this?

22-Jan-2017 13:46:45 CET Initiating request to open file root://eoscms.cern.ch//eos/cms/store/gr … e_122.root
terminate called after throwing an instance of 'edm::Exception’
what(): An exception of category ‘FatalRootError’ occurred.
Additional Info:
[a] Fatal Root Error: @SUB=TStorageFactoryFile::Write
file tnp_MC/output_DYJetsToLL_M-50_TuneCUETP8M1_13TeV-amcatnloFXFX-pythia8_sethzenz-RunIISummer16-2_4_0-25ns_Moriond17-2_4_0-v0-RunIISummer16MiniAODv2-PUMoriond17_HCALDebug_80X_mcRun2_asymptotic_2016_TrancheIV_v6-v1-bccf6e491278057086bbf5e37d2c672b_USER_26_histos.root not opened in write mode.

Thank you,
Arnab Purohit

2

Hi Arnab,

the error says the file is not opened in write mode. It is not clear to me how you triggered the error but given that TStorageFactoryFile is a CMSSW class, perhaps this is a question more suited for a CMS forum.

Cheers,
D