-2
opencv
resource_error
ai_generated
true
cv::error: (-2:未指定错误) 失败: fs.is_open()。无法打开文件: 'model.prototxt' 在函数 'ReadProtoFromTextFile' 中
cv::error: (-2:Unspecified error) FAILED: fs.is_open(). Can't open file: 'model.prototxt' in function 'ReadProtoFromTextFile'
ID: opencv/dnn-caffe-model-load-failed
93%修复率
87%置信度
1证据数
2023-08-20首次发现
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| 4.5.0 | active | — | — | — |
| 4.6.0 | active | — | — | — |
| 4.7.0 | active | — | — | — |
| 4.8.0 | active | — | — | — |
| 4.9.0 | active | — | — | — |
| 4.10.0 | active | — | — | — |
根因分析
加载DNN网络时，Caffe模型的prototxt文件路径不正确或文件不存在。
English
Caffe model prototxt file path is incorrect or the file does not exist when loading a DNN network.
官方文档
https://docs.opencv.org/4.x/d6/d0f/group__dnn.html#ga29f34df9b6c6f0d44e5f3b9e2b8f0d4e解决方案
-
Use an absolute path to the prototxt file. Example: cv::dnn::Net net = cv::dnn::readNetFromCaffe("/absolute/path/to/deploy.prototxt", "/absolute/path/to/model.caffemodel"); -
Verify file existence using std::ifstream before loading: std::ifstream f("deploy.prototxt"); if (!f.good()) { std::cerr << "File not found"; }
无效尝试
常见但无效的做法:
-
80% 失败
The working directory of the executable may differ from the source file location; relative paths are resolved from the executable's run directory.
-
60% 失败
The function expects the prototxt file as the first argument; swapping arguments leads to a different error but often confuses users into thinking the file is missing.