failing in installing mjpc

[Matsuri1203]

when using the command cmake .. -DCMAKE_BUILD_TYPE:STRING=Release -G Ninja -DCMAKE_C_COMPILER:STRING=clang-12 -DCMAKE_CXX_COMPILER:STRING=clang++-12 -DMJPC_BUILD_GRPC_SERVICE:BOOL=ON
I encounter the error
CHECK_STARTmujoco::FindOrFetch: checking for targets in package mujoco
CHECK_FAILtarget mujoco::mujoco not defined.
CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve mujoco
CHECK_STARTmujoco::FindOrFetch: checking for targets in package qhull
CHECK_FAILtarget qhull not defined.
the version of ubuntu is 20.04.6

[Matsuri1203]

full error information:

• 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
  -- Found Python: /usr/bin/python3.8 (found version "3.8.10") found components: Interpreter
  -- Looking for pthread.h
  -- Looking for pthread.h - found
  -- 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
  CHECK_STARTmujoco::FindOrFetch: checking for targets in package mujoco
  CHECK_FAILtarget mujoco::mujoco not defined.
  CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve mujoco
  CHECK_STARTmujoco::FindOrFetch: checking for targets in package qhull
  CHECK_FAILtarget qhull not defined.
  CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve qhull
  -- Looking for sys/types.h
  -- Looking for sys/types.h - found
  -- Looking for inttypes.h
  -- Looking for inttypes.h - found
  -- Looking for stddef.h
  -- Looking for stddef.h - found
  -- Looking for stdint.h
  -- Looking for stdint.h - found
  -- Check size of off_t
  -- Check size of off_t - done
  -- Looking for fseeko
  -- Looking for fseeko - found
  -- Looking for ftello
  -- Looking for ftello - found
  -- Looking for PRIdMAX
  -- Looking for PRIdMAX - found
  --
  -- ========== qhull Build Information ==========
  -- Build Version: 8.1-alpha1
  -- Install Prefix (CMAKE_INSTALL_PREFIX): /usr/local
  -- Binary Directory (BIN_INSTALL_DIR): bin
  -- Library Directory (LIB_INSTALL_DIR): lib
  -- Include Directory (INCLUDE_INSTALL_DIR): include
  -- Documentation Directory (DOC_INSTALL_DIR): share/doc/qhull
  -- Man Pages Directory (MAN_INSTALL_DIR): share/man/man1
  -- CMake Directory (CMAKE_INSTALL_DIR): lib/cmake/QHull
  -- PkgConfig Directory (PKGCONFIG_INSTALL_DIR):lib/pkgconfig
  -- Build Type (CMAKE_BUILD_TYPE): Release
  -- Build static libraries: ON
  -- Build shared library: OFF
  -- Use shared library for linking apps: OFF
  -- Build tests: OFF
  -- To override these options, add -D{OPTION_NAME}=... to the cmake command
  -- Build the debug targets -DCMAKE_BUILD_TYPE=Debug
  --
  -- To build and install qhull, enter "make" and "make install"
  -- To smoketest qhull, enter "ctest"
  --
  CHECK_PASSDone
  CHECK_STARTmujoco::FindOrFetch: checking for targets in package tinyxml2
  CHECK_FAILtarget tinyxml2 not defined.
  CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve tinyxml2
  CHECK_PASSDone
  CHECK_STARTmujoco::FindOrFetch: checking for targets in package tinyobjloader
  CHECK_FAILtarget tinyobjloader not defined.
  CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve tinyobjloader
  CHECK_PASSDone
  CHECK_STARTmujoco::FindOrFetch: checking for targets in package sdflib
  CHECK_FAILtarget SdfLib not defined.
  CHECK_STARTmujoco::FindOrFetch: Using FetchContent to retrieve sdflib