horovodrun command reports an error and cannot run the examples

[FyuNaru]

I installed the environment exactly according to the steps in INSTALLING.md. When I used the commands in TRAINING.md to test, the following error occurred

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horovodrun -np 2 -H 192.168.31.6:2 --verbose python examples/torch/pytorch_mnist.py

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output:

Filtering local host names.
Remote host found:
All hosts are local, finding the interfaces with address 127.0.0.1
Local interface found lo
mpirun --allow-run-as-root --tag-output -np 2 -H 192.168.31.6:2 -bind-to none -map-by slot -mca btl_tcp_if_include lo -x NCCL_SOCKET_IFNAME=lo -x ADDR2LINE -x AR -x AS -x BROWSER -x CC -x CFLAGS -x CMAKE_PREFIX_PATH -x COLORTERM -x CONDA_BACKUP_ADDR2LINE -x CONDA_BACKUP_AR -x CONDA_BACKUP_AS -x CONDA_BACKUP_CC -x CONDA_BACKUP_CFLAGS -x CONDA_BACKUP_CMAKE_PREFIX_PATH -x CONDA_BACKUP_CONDA_BUILD_SYSROOT -x CONDA_BACKUP_CPP -x CONDA_BACKUP_CPPFLAGS -x CONDA_BACKUP_CXX -x CONDA_BACKUP_CXXFILT -x CONDA_BACKUP_CXXFLAGS -x CONDA_BACKUP_DEBUG_CFLAGS -x CONDA_BACKUP_DEBUG_CPPFLAGS -x CONDA_BACKUP_DEBUG_CXXFLAGS -x CONDA_BACKUP_ELFEDIT -x CONDA_BACKUP_GCC -x CONDA_BACKUP_GCC_AR -x CONDA_BACKUP_GCC_NM -x CONDA_BACKUP_GCC_RANLIB -x CONDA_BACKUP_GPROF -x CONDA_BACKUP_GXX -x CONDA_BACKUP_HOST -x CONDA_BACKUP_LD -x CONDA_BACKUP_LDFLAGS -x CONDA_BACKUP_LD_GOLD -x CONDA_BACKUP_NM -x CONDA_BACKUP_OBJCOPY -x CONDA_BACKUP_OBJDUMP -x CONDA_BACKUP_RANLIB -x CONDA_BACKUP_READELF -x CONDA_BACKUP_SIZE -x CONDA_BACKUP_STRINGS -x CONDA_BACKUP_STRIP -x CONDA_BACKUP__CONDA_PYTHON_SYSCONFIGDATA_NAME -x CONDA_BUILD_SYSROOT -x CONDA_CUPY_CUDA_PATH -x CONDA_DEFAULT_ENV -x CONDA_EXE -x CONDA_PREFIX -x CONDA_PREFIX_1 -x CONDA_PREFIX_2 -x CONDA_PREFIX_3 -x CONDA_PREFIX_4 -x CONDA_PREFIX_5 -x CONDA_PREFIX_6 -x CONDA_PREFIX_7 -x CONDA_PROMPT_MODIFIER -x CONDA_PYTHON_EXE -x CONDA_SHLVL -x CPP -x CPPFLAGS -x CUDA_PATH -x CXX -x CXXFILT -x CXXFLAGS -x DBUS_SESSION_BUS_ADDRESS -x DEBUG_CFLAGS -x DEBUG_CPPFLAGS -x DEBUG_CXXFLAGS -x ELFEDIT -x GCC -x GCC_AR -x GCC_NM -x GCC_RANLIB -x GIT_ASKPASS -x GPROF -x GXX -x HOME -x HOROVOD_CCL_BGT_AFFINITY -x HOROVOD_GLOO_TIMEOUT_SECONDS -x HOROVOD_NUM_NCCL_STREAMS -x HOROVOD_STALL_CHECK_TIME_SECONDS -x HOROVOD_STALL_SHUTDOWN_TIME_SECONDS -x HOST -x LANG -x LANGUAGE -x LD -x LDFLAGS -x LD_GOLD -x LESSCLOSE -x LESSOPEN -x LOGNAME -x LS_COLORS -x MOTD_SHOWN -x NCCL_SOCKET_IFNAME -x NM -x OBJCOPY -x OBJDUMP -x PATH -x PWD -x RANLIB -x READELF -x SHELL -x SHLVL -x SIZE -x SSH_CLIENT -x SSH_CONNECTION -x STRINGS -x STRIP -x TERM -x TERM_PROGRAM -x TERM_PROGRAM_VERSION -x USER -x VSCODE_GIT_ASKPASS_EXTRA_ARGS -x VSCODE_GIT_ASKPASS_MAIN -x VSCODE_GIT_ASKPASS_NODE -x VSCODE_GIT_IPC_HANDLE -x VSCODE_IPC_HOOK_CLI -x XDG_DATA_DIRS -x XDG_RUNTIME_DIR -x XDG_SESSION_CLASS -x XDG_SESSION_ID -x XDG_SESSION_TYPE -x _ -x _CE_CONDA -x _CE_M -x _CONDA_PYTHON_SYSCONFIGDATA_NAME python examples/torch/pytorch_mnist.py
[mpiexec@gpu-server-1] match_arg (lib/utils/args.c:166): unrecognized argument allow-run-as-root
[mpiexec@gpu-server-1] HYDU_parse_array (lib/utils/args.c:181): argument matching returned error
[mpiexec@gpu-server-1] parse_args (mpiexec/get_parameters.c:315): error parsing input array
[mpiexec@gpu-server-1] HYD_uii_mpx_get_parameters (mpiexec/get_parameters.c:47): unable to parse user arguments
[mpiexec@gpu-server-1] main (mpiexec/mpiexec.c:49): error parsing parameters

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It is difficult to find a solution to this error on the Internet. I speculate that the version of mpi is too new. When I use the mpirun --version command, the version of mpi I get is 4.1.1. But I don't know how to solve this problem. I tried various solutions, such as replacing an older server with a completely different configuration, but the same problem still occurred

Hope to get your help, thank you