How to use the cmake folder in sample?

[worranhin]

Intro

Hi!

I am a graduate student, I use MuJoCo for my research on robotic control.

My setup

Version: MuJoCo 3.2.4
API: C API
architecture: x64
OS: Windows 10 21H2

My question

I am getting started with MuJoCo and trying the sample in the release zip. I noticed that there is no CmakeLists.txt in the windows release directory, so I just copy the one in the source code to the sample directory. When I try to use CMake to configure the project, the following error emerged:

PS D:\Apps\mujoco-3.2.4-windows-x86_64\sample\build> cmake ..
-- mujoco::FindOrFetch: checking for targets in package `mujoco`
-- mujoco::FindOrFetch: checking for targets in package `mujoco` - target `mujoco` not defined.
-- mujoco::FindOrFetch: finding `mujoco` in system packages...
CMake Error at cmake/FindOrFetch.cmake:109 (find_package):
  By not providing "Findmujoco.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "mujoco", but
  CMake did not find one.

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

    mujocoConfig.cmake
    mujoco-config.cmake

  Add the installation prefix of "mujoco" to CMAKE_PREFIX_PATH or set
  "mujoco_DIR" to a directory containing one of the above files.  If "mujoco"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  cmake/SampleDependencies.cmake:45 (findorfetch)
  CMakeLists.txt:55 (include)


-- Configuring incomplete, errors occurred!

It seems that I should provide a file named "mujocoConfig.cmake" or "mujoco-config.cmake", but I couldn't find that. Is there anyone could help me? thanks.

Minimal model and/or code that explain my question

The exact files in the sample folder of MuJoCo 3.2.4.

Confirmations

• I searched the latest documentation thoroughly before posting.
• I searched previous Issues and Discussions, I am certain this has not been raised before.

[ajoardar007]

I am also having the same issue when trying to compile testspeed.cc (link) on Ubuntu 20.04.
I have MuJoCo installed:

$ pip show mujoco                                                                                                                                                                                                  
Name: mujoco
Version: 3.2.3
Summary: MuJoCo Physics Simulator
Home-page: None
Author: None
Author-email: Google DeepMind <[email protected]>
License: Apache License 2.0
Location: /home/arnab/.local/lib/python3.8/site-packages
Requires: glfw, etils, numpy, absl-py, pyopengl
Required-by: obj2mjcf, dm-control, mujoco-python-viewer, mujoco-python-engine

I have already cloned the latest mujoco-repo and tried running cmake . inside the sample folder and this is what I got:

$ cmake .                                                                                                                                                                                                                                           
-- The C compiler identification is GNU 9.4.0
-- The CXX compiler identification is GNU 9.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Setting build type to 'Release' as none was specified.
-- Performing Test CAN_BUILD_AVX
-- Performing Test CAN_BUILD_AVX - Success
-- Performing Test SUPPORTS_LLD
-- Performing Test SUPPORTS_LLD - Failed
-- Performing Test SUPPORTS_GOLD
-- Performing Test SUPPORTS_GOLD - Success
-- Performing Test SUPPORTS_GC_SECTIONS
-- Performing Test SUPPORTS_GC_SECTIONS - Success
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- mujoco::FindOrFetch: checking for targets in package `mujoco`
-- mujoco::FindOrFetch: checking for targets in package `mujoco` - target `mujoco` not defined.
-- mujoco::FindOrFetch: finding `mujoco` in system packages...
CMake Error at cmake/FindOrFetch.cmake:109 (find_package):
  By not providing "Findmujoco.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "mujoco", but
  CMake did not find one.

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

    mujocoConfig.cmake
    mujoco-config.cmake

  Add the installation prefix of "mujoco" to CMAKE_PREFIX_PATH or set
  "mujoco_DIR" to a directory containing one of the above files.  If "mujoco"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  cmake/SampleDependencies.cmake:45 (findorfetch)
  CMakeLists.txt:55 (include)


-- Configuring incomplete, errors occurred!

Could someone point out where am I going wrong?