christopherbate opened a new issue, #217:
URL: https://github.com/apache/tvm-ffi/issues/217

   
   From C, I was invoking a TVM FFI safe_call. One of the TVMFFIAny arguments 
had type kDLTensorPtr, but the function expected "Optional<ffi.Tensor>". I got 
this error:
   
   ```
     File "<unknown>", line 0, in __tvm_ffi_run
     File "<unknown>", line 0, in TVMFFIGetTypeInfo
     File "src/ffi/object.cc", line 192, in tvm::ffi::TypeTable::Entry* 
tvm::ffi::TypeTable::GetTypeEntry(int32_t)
   InternalError: Check failed: (entry != nullptr) is false: Cannot find type 
info for type_index=7
   ```
   
   It looks like the builtin type `kDLTensorPtr` is missing from registration 
here: https://github.com/apache/tvm-ffi/blob/main/src/ffi/object.cc#L333.


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