Error in developer blog

I try to follow the instruction(Developing Robotics Applications in Python with NVIDIA Isaac SDK | NVIDIA Developer Blog)
when at the beginning, I run bazel run apps/mybot:mybot, I got the error
ERROR: Skipping ‘apps/mybot:mybot’: error loading package ‘apps/mybot’: Every .bzl file must have a corresponding package, but ‘//engine/build:isaac.bzl’ does not have one. Please create a BUILD file in the same or any parent directory. Note that this BUILD file does not need to do anything except exist.