Can't train yolov5, "IndexError" validation causes crash

elliot-flasheye commented 2 years ago

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Question

So I'm trying to train yolov5 but as soon as 1 epoch is done it crashes and I can't figure out what's the issue, I only have 1 class and everything is labeled with 0 as class.

Epoch   gpu_mem       box       obj       cls    labels  img_size
      0/49     6.54G    0.0999   0.03539         0        68       512: 100%|██████████| 257/257 [01:22<00:00,  3.12it/s]                                                                                          
               Class     Images     Labels          P          R     mAP@.5 mAP@.5:.95: 100%|██████████| 2/2 [00:00<00:00,  6.57it/s]                                                                              
                 all         85        653      0.161      0.173       0.12     0.0438
Traceback (most recent call last):
  File "/home/el/yolov5/train.py", line 636, in <module>
    main(opt)
  File "/home/el/yolov5/train.py", line 529, in main
    train(opt.hyp, opt, device, callbacks)
  File "/home/el/yolov5/train.py", line 352, in train
    results, maps, _ = val.run(data_dict,
  File "/home/el/miniconda3/envs/yolov5/lib/python3.9/site-packages/torch/autograd/grad_mode.py", line 27, in decorate_context
    return func(*args, **kwargs)
  File "/home/el/yolov5/val.py", line 328, in run
    maps[c] = ap[i]
IndexError: index 1 is out of bounds for axis 0 with size 1

Grateful for any advice that can point me in the right direction of why this occurs :pray:

Additional

Conda list:

_libgcc_mutex             0.1                        main  
_openmp_mutex             5.1                       1_gnu  
absl-py                   1.2.0                    pypi_0    pypi
asttokens                 2.0.7                    pypi_0    pypi
backcall                  0.2.0                    pypi_0    pypi
blas                      1.0                         mkl  
brotlipy                  0.7.0           py39hb9d737c_1004    conda-forge
bzip2                     1.0.8                h7f98852_4    conda-forge
ca-certificates           2022.6.15            ha878542_0    conda-forge
cachetools                5.2.0                    pypi_0    pypi
certifi                   2022.6.15        py39hf3d152e_0    conda-forge
cffi                      1.14.6           py39he32792d_0    conda-forge
charset-normalizer        2.1.0              pyhd8ed1ab_0    conda-forge
cryptography              37.0.2           py39hd97740a_0    conda-forge
cudatoolkit               11.6.0              hecad31d_10    conda-forge
cycler                    0.11.0                   pypi_0    pypi
decorator                 5.1.1                    pypi_0    pypi
executing                 0.9.1                    pypi_0    pypi
ffmpeg                    4.3                  hf484d3e_0    pytorch
fonttools                 4.34.4                   pypi_0    pypi
freetype                  2.10.4               h0708190_1    conda-forge
gmp                       6.2.1                h58526e2_0    conda-forge
gnutls                    3.6.13               h85f3911_1    conda-forge
google-auth               2.10.0                   pypi_0    pypi
google-auth-oauthlib      0.4.6                    pypi_0    pypi
grpcio                    1.47.0                   pypi_0    pypi
idna                      3.3                pyhd8ed1ab_0    conda-forge
importlib-metadata        4.12.0                   pypi_0    pypi
intel-openmp              2021.4.0          h06a4308_3561  
ipython                   8.4.0                    pypi_0    pypi
jedi                      0.18.1                   pypi_0    pypi
jpeg                      9e                   h166bdaf_1    conda-forge
kiwisolver                1.4.4                    pypi_0    pypi
lame                      3.100             h7f98852_1001    conda-forge
lcms2                     2.12                 hddcbb42_0    conda-forge
ld_impl_linux-64          2.38                 h1181459_1  
libffi                    3.3                  he6710b0_2  
libgcc-ng                 11.2.0               h1234567_1  
libgomp                   11.2.0               h1234567_1  
libiconv                  1.17                 h166bdaf_0    conda-forge
libpng                    1.6.37               h21135ba_2    conda-forge
libstdcxx-ng              11.2.0               h1234567_1  
libtiff                   4.2.0                hf544144_3    conda-forge
libwebp-base              1.2.2                h7f98852_1    conda-forge
lz4-c                     1.9.3                h9c3ff4c_1    conda-forge
markdown                  3.4.1                    pypi_0    pypi
markupsafe                2.1.1                    pypi_0    pypi
matplotlib                3.5.3                    pypi_0    pypi
matplotlib-inline         0.1.3                    pypi_0    pypi
mkl                       2021.4.0           h06a4308_640  
mkl-service               2.4.0            py39h7e14d7c_0    conda-forge
mkl_fft                   1.3.1            py39h0c7bc48_1    conda-forge
mkl_random                1.2.2            py39hde0f152_0    conda-forge
ncurses                   6.3                  h5eee18b_3  
nettle                    3.6                  he412f7d_0    conda-forge
numpy                     1.23.1           py39h6c91a56_0  
numpy-base                1.23.1           py39ha15fc14_0  
oauthlib                  3.2.0                    pypi_0    pypi
olefile                   0.46               pyh9f0ad1d_1    conda-forge
opencv-python             4.6.0.66                 pypi_0    pypi
openh264                  2.1.1                h780b84a_0    conda-forge
openjpeg                  2.4.0                hb52868f_1    conda-forge
openssl                   1.1.1o               h166bdaf_0    conda-forge
packaging                 21.3                     pypi_0    pypi
pandas                    1.4.3                    pypi_0    pypi
parso                     0.8.3                    pypi_0    pypi
pexpect                   4.8.0                    pypi_0    pypi
pickleshare               0.7.5                    pypi_0    pypi
pillow                    9.2.0                    pypi_0    pypi
pip                       22.1.2           py39h06a4308_0  
prompt-toolkit            3.0.30                   pypi_0    pypi
protobuf                  3.19.4                   pypi_0    pypi
psutil                    5.9.1                    pypi_0    pypi
ptyprocess                0.7.0                    pypi_0    pypi
pure-eval                 0.2.2                    pypi_0    pypi
pyasn1                    0.4.8                    pypi_0    pypi
pyasn1-modules            0.2.8                    pypi_0    pypi
pycparser                 2.21               pyhd8ed1ab_0    conda-forge
pygments                  2.12.0                   pypi_0    pypi
pyopenssl                 22.0.0             pyhd8ed1ab_0    conda-forge
pyparsing                 3.0.9                    pypi_0    pypi
pysocks                   1.7.1            py39hf3d152e_5    conda-forge
python                    3.9.12               h12debd9_1  
python-dateutil           2.8.2                    pypi_0    pypi
python_abi                3.9                      2_cp39    conda-forge
pytorch                   1.12.1          py3.9_cuda11.6_cudnn8.3.2_0    pytorch
pytorch-mutex             1.0                        cuda    pytorch
pytz                      2022.2                   pypi_0    pypi
pyyaml                    6.0                      pypi_0    pypi
readline                  8.1.2                h7f8727e_1  
requests                  2.28.1             pyhd8ed1ab_0    conda-forge
requests-oauthlib         1.3.1                    pypi_0    pypi
rsa                       4.9                      pypi_0    pypi
scipy                     1.9.0                    pypi_0    pypi
seaborn                   0.11.2                   pypi_0    pypi
setuptools                61.2.0           py39h06a4308_0  
six                       1.16.0             pyh6c4a22f_0    conda-forge
sqlite                    3.39.2               h5082296_0  
stack-data                0.3.0                    pypi_0    pypi
tensorboard               2.10.0                   pypi_0    pypi
tensorboard-data-server   0.6.1                    pypi_0    pypi
tensorboard-plugin-wit    1.8.1                    pypi_0    pypi
thop                      0.1.1-2207130030          pypi_0    pypi
tk                        8.6.12               h1ccaba5_0  
torch                     1.12.1                   pypi_0    pypi
torchaudio                0.12.1               py39_cu116    pytorch
torchvision               0.13.1                   pypi_0    pypi
tqdm                      4.64.0                   pypi_0    pypi
traitlets                 5.3.0                    pypi_0    pypi
typing_extensions         4.3.0              pyha770c72_0    conda-forge
tzdata                    2022a                hda174b7_0  
urllib3                   1.26.11            pyhd8ed1ab_0    conda-forge
wcwidth                   0.2.5                    pypi_0    pypi
werkzeug                  2.2.2                    pypi_0    pypi
wheel                     0.37.1             pyhd3eb1b0_0  
xz                        5.2.5                h7f8727e_1  
zipp                      3.8.1                    pypi_0    pypi
zlib                      1.2.12               h7f8727e_2  
zstd                      1.5.0                ha95c52a_0    conda-forge

github-actions[bot] commented 2 years ago

👋 Hello @elliot-flasheye, thank you for your interest in YOLOv5 🚀! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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glenn-jocher commented 2 years ago

@elliot-flasheye 👋 hi, thanks for letting us know about this possible problem with YOLOv5 🚀. We've created a few short guidelines below to help users provide what we need in order to start investigating a possible problem.

How to create a Minimal, Reproducible Example

When asking a question, people will be better able to provide help if you provide code that they can easily understand and use to reproduce the problem. This is referred to by community members as creating a minimum reproducible example. Your code that reproduces the problem should be:

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For Ultralytics to provide assistance your code should also be:

✅ Current – Verify that your code is up-to-date with GitHub master, and if necessary git pull or git clone a new copy to ensure your problem has not already been solved in master.
✅ Unmodified – Your problem must be reproducible using official YOLOv5 code without changes. Ultralytics does not provide support for custom code ⚠️.

If you believe your problem meets all the above criteria, please close this issue and raise a new one using the 🐛 Bug Report template with a minimum reproducible example to help us better understand and diagnose your problem.

Thank you! 😃

github-actions[bot] commented 2 years ago

👋 Hello, this issue has been automatically marked as stale because it has not had recent activity. Please note it will be closed if no further activity occurs.

Access additional YOLOv5 🚀 resources:

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devendraswamy commented 12 months ago

Is it resolved , for me same error. help me out to debug it

glenn-jocher commented 12 months ago

Hi @devendraswamy 🙋‍♂️, the reported issue seems to be related to the validation step during training. For us to help you better, could you please provide a minimum reproducible example along with the command you are using to train YOLOv5, so we can diagnose the problem more effectively? Additionally, ensure that your code is up-to-date with the latest YOLOv5 code from our GitHub master. Thank you! 😊

ultralytics / yolov5