CMake Warning \(dev\) at CMP0121-REMOVE_AT-Common.cmake:3 \(list\):
  Policy CMP0121 is not set: The list\(\) command now validates parsing of
  index arguments.  Run "cmake --help-policy CMP0121" for policy details.
  Use the cmake_policy command to set the policy and suppress this warning.
  Invalid list index "invalid".
Call Stack \(most recent call first\):
  CMP0121-REMOVE_AT-WARN.cmake:2 \(include\)
  CMakeLists.txt:3 \(include\)
This warning is for project developers.  Use -Wno-dev to suppress it.

REMOVE_AT: -->b;c;d;e<--