ROOT Forum

Topic	Replies	Views	Activity
Newbie forum for when you're not sure News If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask your question, then please ask it in the Newbie section, where nice people help and we have special rules to be more welcoming. Don’t hesitate, jus…	4	19489	February 19, 2025
Welcome to the ROOT forum! News	1	8281	February 10, 2017
ROOT fails on my Mac after an update ROOT	5	42	April 21, 2026
Efficiency issue when reading a persistent branch from file Newbie	3	23	April 21, 2026
Critical error detected c0000374 with minimal example Newbie	9	30	April 20, 2026
Trying simulationo of the hole(mesh) in the garfield++ Garfield++ root	6	34	April 20, 2026
Creating a custom gas with imported transport data Garfield++	7	40	April 17, 2026
TTreeProcessorMT deadlock in ROOT cmd line ROOT	3	32	April 17, 2026
Intermittent shutdown memory crash in compiled ROOT app (bus error / segfault / malloc smallbin corruption) with minimal reproducer ROOT	2	28	April 15, 2026
[Windows] ROOT 6.38 + Python 3.14: No module named 'libcppyy' [CEA 52284] ROOT python , windows	3	20	April 15, 2026
A memory leak with RDataFrame.AsNumpy() and vector<vector<vector<float>>> ROOT python	9	107	April 14, 2026
TBufferMerger fails to write histograms to output file for Alma Linux ROOT hist	7	49	April 13, 2026
Cannot connect to the RGeomViewer/THttpEngine ROOT	7	37	April 10, 2026
Extended Likelihood Question of ROOFIT Roofit and RooStats root	5	34	April 10, 2026
TImage DrawCircle cause core dump ROOT root	3	28	April 9, 2026
TGraph/TMultiGraph yaxis Ndivisions and range ROOT jsroot	9	48	April 7, 2026
Cling error on macOS 26.4 (Homebrew ROOT 6.38.04): missing libc++ header __type_traits/add_lvalue_reference.h and ABI warning ROOT	5	170	April 19, 2026
ROOT error after the new command line tool update : "Command Line Tools for Xcode 26.4" ROOT root	2	55	April 18, 2026
Large changes in branch sizes in later builds of ROOT ROOT root	6	83	April 1, 2026
Clinglite + idacling : C++ REPL for IDA Pro Cling cling	2	35	April 14, 2026
NeBem error during installation in macos 12.4.8 sonoma Garfield++	3	39	April 13, 2026
Bug in h2root General Chat	12	74	March 30, 2026
ERROR: GPU use requested but Garfield has not been built with GPU support Garfield++	5	66	April 10, 2026
🚀 3rd ROOT Hackathon: The Fixathon 2.0 News	2	82	March 31, 2026
Is it possible to disable progress bar? Newbie root	2	43	March 24, 2026
Problem deleting TList of TCanvases ROOT	6	50	April 6, 2026
CANU – CANvas Unifier for ROOT Evolution Proposals, Apps & Ideas	2	51	March 21, 2026
Installation issue with MacOS ROOT installation	4	58	April 3, 2026
Rootcling warnings when compiling ROOT 6.36.08 with C++23 ROOT root	3	47	April 3, 2026
What are the most difficult C++ topics to learn? Newbie	7	155	March 20, 2026

Newbie forum for when you're not sure

If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask your question, then please ask it in the Newbie section, where nice people help and we have special rules to be more welcoming. Don’t hesitate, jus…