Unrecognised channel number

[olyjazzhead]

I'm doing some tests with mc16d and getting an error message:

CP::TPileupReweighting... ERROR Unrecognised channelNumber 361022 for periodNumber 300000

I'm fairly new to lxplus and CERN computing so any explanation would be helpful. Thanks

[mdhank]

Hi @olyjazzhead,

Which version/branch of xAODAnaHelpers and which AnalysisBase are you using? These will be helpful for debugging.

The error suggests the Pileup Reweighting wasn't fully configured. One thing to check is if you have m_autoconfigPRW set to True in your config for BasicEventSelection. This should allow it to autoconfigure.

Best,
Michael

[olyjazzhead]

Thank you for your reply. I'm using AnalysisBase/21.2.105. I will check the config file as you mentioned and come back with more questions if I can not figure it out.

[mdhank]

Another possible issue could be the xAODAnaHelpers version. The "main" branch is designed for Release 22/24, while since you're running Release 21 you need to make sure you're on the "r21/main" branch.