import tvm error, when initialized module 'tvm_ffi'(most likely due to a circular import)

hello: when i use python “import tvm” it’s some error:

File “”, line 1, in import tvm; print(tvm.base._LIB) ^^^^^^^^^^ File “/home/ll/tvm/python/tvm/init.py”, line 24, in from tvm_ffi import register_object, register_global_func, get_global_func File “/home/ll/tvm/3rdparty/tvm-ffi/python/tvm_ffi/init.py”, line 38, in from .registry import ( …<6 lines>… ) File “/home/ll/tvm/3rdparty/tvm-ffi/python/tvm_ffi/registry.py”, line 25, in from . import core ImportError: cannot import name ‘core’ from partially initialized module ‘tvm_ffi’ (most likely due to a circular import) (/home/ll/tvm/3rdparty/tvm-ffi/python/tvm_ffi/init.py)

i just do as “install from source” Install from Source — tvm 0.23.dev0 documentation, i do’nt know what happened and how to cover this trouble.