[Bug] 'ConfigDict' object has no attribute 'workers_per_gpu'

Prerequisite

[X] I have searched Issues and Discussions but cannot get the expected help.
[X] I have read the FAQ documentation but cannot get the expected help.
[X] The bug has not been fixed in the latest version (master) or latest version (3.x).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

master branch https://github.com/open-mmlab/mmdetection

Environment

sys.platform: win32 Python: 3.9.15 (main, Nov 24 2022, 14:39:17) [MSC v.1916 64 bit (AMD64)] CUDA available: False MSVC: Microsoft (R) C/C++ Optimizing Compiler Version 19.29.30136 for x64 GCC: n/a PyTorch: 1.13.1+cpu PyTorch compiling details: PyTorch built with:

C++ Version: 199711
MSVC 192829337
Intel(R) Math Kernel Library Version 2020.0.2 Product Build 20200624 for Intel(R) 64 architecture applications
Intel(R) MKL-DNN v2.6.0 (Git Hash 52b5f107dd9cf10910aaa19cb47f3abf9b349815)
OpenMP 2019
LAPACK is enabled (usually provided by MKL)
CPU capability usage: AVX2
Build settings: BLAS_INFO=mkl, BUILD_TYPE=Release, CXX_COMPILER=C:/actions-runner/_work/pytorch/pytorch/builder/windows/tmp_bin/sccache-cl.exe, CXX_FLAGS=/DWIN32 /D_WINDOWS /GR /EHsc /w /bigobj -DUSE_PTHREADPOOL -openmp:experimental -IC:/actions-runner/_work/pytorch/pytorch/builder/windows/mkl/include -DNDEBUG -DUSE_KINETO -DLIBKINETO_NOCUPTI -DUSE_FBGEMM -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -DEDGE_PROFILER_USE_KINETO, LAPACK_INFO=mkl, PERF_WITH_AVX=1, PERF_WITH_AVX2=1, PERF_WITH_AVX512=1, TORCH_VERSION=1.13.1, USE_CUDA=0, USE_CUDNN=OFF, USE_EXCEPTION_PTR=1, USE_GFLAGS=OFF, USE_GLOG=OFF, USE_MKL=ON, USE_MKLDNN=ON, USE_MPI=OFF, USE_NCCL=OFF, USE_NNPACK=OFF, USE_OPENMP=ON, USE_ROCM=OFF,

TorchVision: 0.14.1+cpu OpenCV: 4.7.0 MMCV: 1.7.1 MMCV Compiler: MSVC 192829924 MMCV CUDA Compiler: not available MMDetection: 2.27.0+

Reproduces the problem - code sample

I didn't change the code at all.

Reproduces the problem - command or script

python tools\train.py yolov3_d53_mstrain-608_273e_coco.py

Reproduces the problem - error message

Traceback (most recent call last): File "C:\Program Files\JetBrains\PyCharm 2022.1.3\plugins\python\helpers\pydev\pydevd.py", line 1491, in _exec pydev_imports.execfile(file, globals, locals) # execute the script File "C:\Program Files\JetBrains\PyCharm 2022.1.3\plugins\python\helpers\pydev_pydev_imps_pydev_execfile.py", line 18, in execfile exec(compile(contents+"\n", file, 'exec'), glob, loc) File "C:/Users/rpierau/Code/mmdetection/tools/train.py", line 247, in main() File "C:/Users/rpierau/Code/mmdetection/tools/train.py", line 236, in main train_detector( File "C:\Users\rpierau\Code\mmdetection\mmdet\apis\train.py", line 247, in train_detector workers_per_gpu=cfg.data.workers_per_gpu, File "C:\Users\rpierau\Code\mmdetection\openmmlab\lib\site-packages\mmcv\utils\config.py", line 50, in getattr raise ex AttributeError: 'ConfigDict' object has no attribute 'workers_per_gpu'

Additional information

I just tried to run a Yolo model with the config file provided by you. I didn't change anything.

open-mmlab / mmdetection