TVMError Caused by Running `relay.vm.compile`

Hi there:

When I am trying to compile a network with relay.vm.compile, I got such logs

Traceback (most recent call last):
  File "", line 153, in <module>
  File "", line 117, in compile_with_cpu
    exe = relay.vm.compile(mod, target=target, params=params)
  File "/root/Codes/tvm_in_mac/python/tvm/relay/backend/", line 72, in compile
  File "/root/Codes/tvm_in_mac/python/tvm/relay/backend/", line 141, in codegen
  File "/root/Codes/tvm_in_mac/python/tvm/_ffi/_ctypes/", line 225, in __call__
    raise get_last_ffi_error()
tvm._ffi.base.TVMError: Traceback (most recent call last):
  [bt] (8) /root/Codes/tvm_in_mac/build/<tvm::runtime::String, tvm::IRModule, void, void> const&, tvm::Target const&)+0x63c) [0x7f0bb9c72d1c]
  [bt] (7) /root/Codes/tvm_in_mac/build/<tvm::Target, tvm::IRModule, void, void> const&, tvm::Target const&)+0x252) [0x7f0bb9c71f32]
  [bt] (6) /root/Codes/tvm_in_mac/build/, tvm::Target const&, tvm::Target const&, tvm::transform::PassContext const&)+0x3ba) [0x7f0bb9c70d9a]
  [bt] (5) /root/Codes/tvm_in_mac/build/ const+0x66) [0x7f0bb9c78086]
  [bt] (4) /root/Codes/tvm_in_mac/build/, tvm::transform::PassContext const&) const+0x3e6) [0x7f0bb9cc1206]
  [bt] (3) /root/Codes/tvm_in_mac/build/, tvm::transform::PassContext const&) const+0x14e) [0x7f0bb9cbfb9e]
  [bt] (2) /root/Codes/tvm_in_mac/build/ [0x7f0bb9f4b7fc]
  [bt] (1) /root/Codes/tvm_in_mac/build/, int)+0x28ef) [0x7f0bb9f48b8f]
  [bt] (0) /root/Codes/tvm_in_mac/build/ [0x7f0bb9b8cd77]
  File "/root/Codes/tvm_in_mac/src/tir/transforms/", line 208
TVMError: Not all Vars are passed in api_args:  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  'any_dim'  is not bound to any variables

The target I am using is llvm, and any suggestion about how to figure out what is wrong?