Merging several several root files using “HAdd” command failed with error message
"SysError in TFile::Flush: error flushing file Target.root (No such file or directory)"
I have used with the current setup of root, I am not sure why it is throwing this error.
I had the idea it might be space issue, but I created lots of space by deleting several of the directories.
But no use.
I am afraid, I do not know what to do now.