Issue: ./als_tf.so: undefined symbol: _ZTIN10tensorflow8OpKernelE

[cestlaviebai]

Hi, I am trying to run the TensorFlow example.
I first run the build script, which builds OK and creates als_tf.so and libALS.so in the current directory, but when I execute "cumf_as_tensorflow_ops_test.py" it says:

tensorflow.python.framework.errors.NotFoundError: libALS.so: cannot open shared object file: No such file or directory

I notice that in a previous closed issue " shall we provide a python interface? #1", somebody mentioned this issue, so that I follow his instruction to move the libraries to /usr/lib :

*cp .so /usr/lib

and then running it generates the following error:

File "cumf_as_tensorflow_ops_test.py", line 25, in
als_module = tf.load_op_library(lib_path)
File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/framework/load_library.py", line 56, in load_op_library
lib_handle = py_tf.TF_LoadLibrary(library_filename, status)
File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/framework/errors_impl.py", line 473, in exit
c_api.TF_GetCode(self.status.status))
tensorflow.python.framework.errors_impl.NotFoundError: ./als_tf.so: undefined symbol: _ZTIN10tensorflow8OpKernelE

Can you please give me a clue what went wrong?