KeyError:"tile_oh"

I am auto-tuning an detection model (EAST text detection model based on VGG https://github.com/SakuraRiven/EAST) used the sample code in https://docs.tvm.ai/tutorials/autotvm/tune_relay_x86.html, but I got the error:

Traceback (most recent call last):

  File "load_tvm.py", line 185, in <module>
    tune_and_evaluate(tuning_option)

  File "load_tvm.py", line 148, in tune_and_evaluate
    mod, target=target, params=params

  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/relay/build_module.py", line 249, in build
    graph_json, mod, params = bld_mod.build(func, target, target_host, params)

  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/relay/build_module.py", line 119, in build
    self._build(func, target, target_host)

  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/_ffi/_ctypes/packed_func.py", line 213, in __call__
    raise get_last_ffi_error()

tvm._ffi.base.TVMError: Traceback (most recent call last):
  [bt] (8) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::backend::GraphRuntimeCodegen::VisitExpr(tvm::RelayExpr const&)+0x7d3) [0x7fc55d056233]
  [bt] (7) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::backend::GraphRuntimeCodegen::VisitExpr_(tvm::relay::CallNode const*)+0x894) [0x7fc55d059984]
  [bt] (6) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::backend::GraphRuntimeCodegen::GraphAddCallNode(tvm::relay::CallNode const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0xe8) [0x7fc55d054178]
  [bt] (5) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::backend::GraphRuntimeCodegen::VisitExpr(tvm::RelayExpr const&)+0x7d3) [0x7fc55d056233]
  [bt] (4) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::backend::GraphRuntimeCodegen::VisitExpr_(tvm::relay::CallNode const*)+0x628) [0x7fc55d059718]
  [bt] (3) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(+0x12e237c) [0x7fc55d02d37c]
  [bt] (2) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::CompileEngineImpl::LowerInternal(tvm::relay::CCacheKey const&)+0x4bf) [0x7fc55d037f8f]
  [bt] (1) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(tvm::relay::ScheduleGetter::Create(tvm::relay::Function const&)+0xaff) [0x7fc55d03261f]
  [bt] (0) /home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/libtvm.so(+0x1436cbb) [0x7fc55d181cbb]
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/_ffi/_ctypes/packed_func.py", line 78, in cfun
    rv = local_pyfunc(*pyargs)
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/relay/op/nn/_nn.py", line 794, in schedule_contrib_conv2d_NCHWc
    return topi.generic.schedule_conv2d_NCHWc(outs)
  File "<decorator-gen-196>", line 2, in schedule_conv2d_NCHWc
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/target/generic_func.py", line 266, in dispatch_func
    return dispatch_dict[k](*args, **kwargs)
  File "<decorator-gen-246>", line 2, in config_dispatcher
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/autotvm/task/dispatcher.py", line 221, in dispatch_func
    return dispatch_dict[cfg.template_key](cfg, *args, **kwargs)
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/autotvm/task/topi_integration.py", line 517, in template_call
    return f(cfg, outs, *args, **kwargs)
  File "/home/dai/.local/lib/python3.7/site-packages/topi-0.7.dev0-py3.7.egg/topi/x86/conv2d.py", line 435, in _schedule_conv2d_NCHWc
    traverse(outs[0].op)
  File "/home/dai/.local/lib/python3.7/site-packages/topi-0.7.dev0-py3.7.egg/topi/x86/conv2d.py", line 412, in traverse
    traverse(tensor.op)
  File "/home/dai/.local/lib/python3.7/site-packages/topi-0.7.dev0-py3.7.egg/topi/x86/conv2d.py", line 412, in traverse
    traverse(tensor.op)
  File "/home/dai/.local/lib/python3.7/site-packages/topi-0.7.dev0-py3.7.egg/topi/x86/conv2d.py", line 429, in traverse
    conv2d_avx_1x1._schedule_conv_NCHWc(*args)
  File "/home/dai/.local/lib/python3.7/site-packages/topi-0.7.dev0-py3.7.egg/topi/x86/conv2d_avx_1x1.py", line 130, in _schedule_conv_NCHWc
    oh_factor, ow_factor = cfg["tile_oh"].val, cfg["tile_ow"].size[-1]
  File "/home/dai/.local/lib/python3.7/site-packages/tvm-0.7.dev0-py3.7-linux-x86_64.egg/tvm/autotvm/task/space.py", line 814, in __getitem__
    return self._entity_map[name]
KeyError: 'tile_oh'

What’s “tile_oh” used for? How can I solve it?

Looking forward to your reply.