No module named 'cv2'
时间: 2023-09-06 14:09:13 浏览: 21
This error message usually appears when OpenCV (cv2) is not installed properly or is not in the Python path. Here are some possible solutions:
1. Install OpenCV: Use pip to install OpenCV. Run the following command in the terminal or command prompt:
```
pip install opencv-python
```
2. Check if OpenCV is installed: Run the following command in the Python shell to check if OpenCV is installed:
```
import cv2
```
If there is no error message, OpenCV is installed properly.
3. Check the Python path: Make sure that the Python path includes the directory where OpenCV is installed. You can check the Python path by running the following command in the Python shell:
```
import sys
print(sys.path)
```
If the directory where OpenCV is installed is not in the Python path, you can add it using the following command:
```
sys.path.append('/path/to/opencv')
```
Replace "/path/to/opencv" with the actual path to the directory where OpenCV is installed.
4. Check the version of Python: Make sure that you are using the correct version of Python that is compatible with OpenCV. OpenCV supports Python 2.7, 3.5, 3.6, 3.7, and 3.8.
5. Check the version of OpenCV: If you have multiple versions of OpenCV installed, make sure that you are using the correct version. You can check the version of OpenCV by running the following command in the Python shell:
```
import cv2
print(cv2.__version__)
```
If you are using the wrong version, uninstall it and install the correct version using pip.
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