Install libnvtoolsext1 by entering the following commands in the terminal:
sudo apt update sudo apt install libnvtoolsext1
NVIDIA Tools Extension Library
The NVIDIA Tools Extension SDK (NVTX) is a C-based API for marking events and ranges in your applications. Applications which integrate NVTX can use Nsight to capture and visualize these events and ranges. . This package contains the NVIDIA Tools Extension runtime library.