undefined reference to `cv::CascadeClassifier::load'
时间: 2024-05-27 13:14:27 浏览: 20
This error message indicates that the linker is unable to find the definition of the `load` method of the `CascadeClassifier` class in the OpenCV library. This can occur if the necessary library files are not included in the build process or if the library files are not installed correctly.
To resolve this issue, you can try the following steps:
1. Ensure that you have included the appropriate OpenCV headers in your code, such as `opencv2/objdetect.hpp` for the `CascadeClassifier` class.
2. Make sure that you have linked your project with the OpenCV library files. You can do this by adding the appropriate linker flags to your project settings. For example, if you are using GCC, you can add the `-lopencv_core` and `-lopencv_objdetect` flags to link with the OpenCV core and object detection modules.
3. Verify that the OpenCV libraries are installed correctly on your system. You can do this by checking that the library files exist in the correct directories and that the version of the installed library matches the version you are using in your code.
If none of these steps resolve the issue, you may need to check your code for other errors or consult the OpenCV documentation or community for further assistance.
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)