[GitHub] Faldict opened a new issue #12142: Failed to import MXNet built with TensorRT

[GitBox <gi...@apache.org>]

Faldict opened a new issue #12142: Failed to import MXNet built with TensorRT
URL: https://github.com/apache/incubator-mxnet/issues/12142
 
 
   I pulled the latest source code from the master branch and built MXNet successfully with `USE_TENSORRT = 1`. But I failed to import mxnet:
   
   ```
   python3 -E -v -c "import mxnet as mx"
   ```
   
   Here is the error log:
   
   ```
   Traceback (most recent call last):
     File "<string>", line 1, in <module>
     File "<frozen importlib._bootstrap>", line 969, in _find_and_load
     File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
     File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
     File "<frozen importlib._bootstrap_external>", line 665, in exec_module
     File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
     File "/home/faldict/incubator-mxnet/python/mxnet/__init__.py", line 24, in <module>
       from .context import Context, current_context, cpu, gpu, cpu_pinned
     File "<frozen importlib._bootstrap>", line 969, in _find_and_load
     File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
     File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
     File "<frozen importlib._bootstrap_external>", line 665, in exec_module
     File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
     File "/home/faldict/incubator-mxnet/python/mxnet/context.py", line 24, in <module>
       from .base import classproperty, with_metaclass, _MXClassPropertyMetaClass
     File "<frozen importlib._bootstrap>", line 969, in _find_and_load
     File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
     File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
     File "<frozen importlib._bootstrap_external>", line 665, in exec_module
     File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
     File "/home/faldict/incubator-mxnet/python/mxnet/base.py", line 217, in <module>
       _LIB = _load_lib()
     File "/home/faldict/incubator-mxnet/python/mxnet/base.py", line 208, in _load_lib
       lib = ctypes.CDLL(lib_path[0], ctypes.RTLD_LOCAL)
     File "/usr/lib/python3.5/ctypes/__init__.py", line 347, in __init__
       self._handle = _dlopen(self._name, mode)
   OSError: /home/faldict/incubator-mxnet/python/mxnet/../../lib/libmxnet.so: undefined symbol: _ZNK6google8protobuf7Message9SpaceUsedEv
   ```
   
   I use protobuf 3.5.1. 
   @mkolod Could you please take a look at this?
   

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