Hi @msn1446311191 ,
The problem is with the invalidated GPG key from Kitaware repository.
The engineering team is currently working on releasing a new version of our Isaac ROS Docker images.
Meanwhile, you can add the command below to Dockerfile.user and run ./scripts/run_dev.sh, which will rebuild your image as a workaround.
RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null