Issue
I ran through the TensorFlow object detection installation on Windows.
https://medium.com/riow/tensorflow-object-detection-on-windows-ad10bfde217c
After successfully installing TensorFlow object detection,
I ran following command to test, and receiving error below. How can this be fixed?
python object_detection/builders/model_builder_test.py
Error: Traceback (most recent call last):
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 64, in
from tensorflow.python._pywrap_tensorflow_internal import *
ImportError: DLL load failed while importing pywrap_tensorflow_internal: The specified module could not be found.
Traceback (most recent call last):
File "object_detection/builders/model_builder_test.py", line 21, in
from object_detection.builders import model_builder
File "c:\testimage\models\research\object_detection\builders\model_builder.py", line 23, in
from object_detection.builders import anchor_generator_builder
File "c:\testimage\models\research\object_detection\builders\anchor_generator_builder.py", line 23, in
from object_detection.anchor_generators import flexible_grid_anchor_generator
File "c:\testimage\models\research\object_detection\anchor_generators\flexible_grid_anchor_generator.py", line 17, in
import tensorflow.compat.v1 as tf
File "C:\TestImage\models\venv\lib\site-packages\tensorflow_init.py", line 41, in
from tensorflow.python.tools import module_util as module_util
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python_init.py", line 40, in
from tensorflow.python.eager import context
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python\eager\context.py", line 35, in
from tensorflow.python import pywrap_tfe
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python\pywrap_tfe.py", line 28, in
from tensorflow.python import pywrap_tensorflow
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 83, in
raise ImportError(msg)
ImportError: Traceback (most recent call last):
File "C:\TestImage\models\venv\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 64, in
from tensorflow.python._pywrap_tensorflow_internal import *
ImportError: DLL load failed while importing _pywrap_tensorflow_internal: The specified module could not be found.
Currently using Python 3.8 with latest tensorflow, with tensorflow-cpu
Solution
tldr;
You need to install the C++ redistributable mentioned on the install page before installing TensorFlow so that TensorFlow can use it to generate code at install time.
Details:
I’m not an expert but it sounds like this was key:
The pywrap_tensorflow_internal.py module you are missing appears to me to be a SWIG-generated python interface to a C++ library, or something of that nature. My guess is, that file gets generated when you install TensorFlow (it reminds me of how some Ruby gems have to compile C++ when you install them, for whatever that’s worth). Since you don’t have that generated file, my guess is that the C++ package mentioned on the TensorFlow install page is needed for that code generation, so you need to have the C++ package installed before installing TensorFlow.
Totally a guess, but perhaps you installed the C++ package after TF. In that case, you should be able to uninstall TF, install the C++ package, and then install TF again.
Maybe a lingering question is if there were any indicative error messages on installing TF about the missing C++ package and if not, maybe there should be.
Answered By – xdhmoore
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