error log | 日志或报错信息 | ログ

Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !

model | 模型 | モデル

1. yolov5s.pt, https://github.com/ultralytics/yolov5/releases/tag/v5.0

how to reproduce | 复现步骤 | 再現方法

1.mac环境，编译ncnn

-- CMAKE_INSTALL_PREFIX = /Users/yunyang/Downloads/learn/ncnn/build/install
-- NCNN_VERSION_STRING = 1.0.21.08.30
-- Target arch: x86
-- Found OpenMP_C: -Xclang -fopenmp (found version "5.0")
-- Found OpenMP_CXX: -Xclang -fopenmp (found version "5.0")
-- Found OpenMP: TRUE (found version "5.0")
-- OpenCV library: /usr/local/Cellar/opencv/4.5.3_2
-- version: 4.5.3
-- libraries: opencv_core;opencv_highgui;opencv_imgproc;opencv_imgcodecs;opencv_videoio
-- include path: /usr/local/Cellar/opencv/4.5.3_2/include/opencv4
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/yunyang/Downloads/learn/ncnn/build

2.转yolov5s.pt位onnx，python3 export.py --weights yolov5s.pt --img 640 --batch 1
3.python3 -m onnxsim yolov5s.onnx yolov5s-sim.onnx得到yolov5s-sim.onnx
4../onnx2ncnn yolov5s-sim.onnx yolov5s.param yolov5s.bin，出现
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !
Unsupported slice axes !

请问有遇到这个问题吗？这个是什么原因，如何处理？谢谢