CMake Error: Cannot find package ament_gmock

[120MF]

After setting up the robot controller using the rtw command:
ros2_control_setup-hardware-interface-package dofbot_hardware DofHW
and inputing some information,
the colcon build gives a CMake Error:

CMake Error at CMakeLists.txt:10 (find_package):
  By not providing "Findament_gmock.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "ament_gmock", but CMake did not find one.

  Could not find a package configuration file provided by "ament_gmock" with
  any of the following names:

    ament_gmockConfig.cmake
    ament_gmock-config.cmake

  Add the installation prefix of "ament_gmock" to CMAKE_PREFIX_PATH or set
  "ament_gmock_DIR" to a directory containing one of the above files.  If
  "ament_gmock" provides a separate development package or SDK, be sure it
  has been installed.

the apt shows that I have downloaded ros gmock.

ros-humble-ament-cmake-gmock/jammy,now 1.3.8-1jammy.20240217.024747 amd64 [已安装，自动]
  The ability to add Google mock-based tests in the ament buildsystem in CMake.

ros-humble-gmock-vendor/jammy,now 1.10.9004-4jammy.20240217.024718 amd64 [已安装，自动]
  The package provides GoogleMock.

Is there any missing packages?

[mamueluth]

its probably not in the package.xml
have to check the generation scripts

[eholandcmu]

I have the same issue. A temporary fix was to comment out the if(BUILD_TESTING) section/ in CMakeLists.txt. This allows the package to build, but I imagine it is not an ideal solution as you lose that functionality.