如何删除安装 tensorflow 后出现的导入错误？

Question

我正在做一个虚拟机上的交通信号自动化项目。它需要使用图像检测过程来检测汽车。 代码：

import cv2
import matplotlib.pyplot as plt
import cvlib as cv
from cvlib.object_detection import draw_bbox
im = cv2.imread('cars_4.jpeg')
bbox, label, conf = cv.detect_common_objects(im)
output_image = draw_bbox(im, bbox, label, conf)
plt.imshow(output_image)
plt.show()
print('Number of cars in the image is '+ str(label.count('car')))

操作系统：带有树莓派桌面的 Debian Buster https://www.raspberrypi.org/software/raspberry-pi-desktop/

内核版本：4.19

Python 版本：3.7.3

点子版本：

WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
pip 21.1.1 from /home/pi/.local/lib/python3.7/site-packages/pip (python 3.7)

使用的库：

-打开简历

• cvlib

• matplotlib.

安装 cvlib 后需要我安装张量流，安装张量流后执行时出现此错误：

错误：

(venv) pi@raspberry:~/Desktop/TSA $ python3 main.py 
Traceback (most recent call last):
  File "main.py", line 3, in <module>
    import cvlib as cv
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/cvlib/_init_.py", line 8, in <module>
    from .gender_detection import detect_gender
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/cvlib/gender_detection.py", line 3, in <module>
    from tensorflow.keras.utils import get_file
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/tensorflow/_init_.py", line 23, in <module>
    from tensorflow.python import *
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/tensorflow/python/_init_.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/tensorflow/python/pywrap_tensorflow.py", line 28, in <module>
    _pywrap_tensorflow = swig_import_helper()
  File "/home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/tensorflow/python/pywrap_tensorflow.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow', fp, pathname, description)
  File "/usr/lib/python3.7/imp.py", line 242, in load_module
    return load_dynamic(name, filename, file)
  File "/usr/lib/python3.7/imp.py", line 342, in load_dynamic
    return _load(spec)
ImportError: /home/pi/Desktop/TSA/venv/lib/python3.7/site-packages/tensorflow/python/_pywrap_tensorflow.so: cannot open shared object file: No such file or directory

尝试添加 “导出 LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-9.0/lib64/” 在 .bashrc 文件中，仍然是同样的错误。

Answer 1

根据错误，您的 cvlib 安装似乎有问题。

我猜你可以再试一次：

pip install opencv-python tensorflow

pip install cvlib

看看这是否会产生一些错误消息，这些消息可能会告诉你可能出了什么问题。

正如@swarles-barkley 的评论中提到的，也许您的环境实际上需要上述内容：

python3 -m pip install opencv-python tensorflow

python3 -m pip install cvlib

编辑（评论后）： 同样，您的环境设置肯定有些奇怪。您可以尝试卸载然后重新安装 tensorflow 和 cvlib，同时仔细查看编译过程中出现的任何警告。 这个discussion 可能会给你一些关于如何调试问题的想法。