A complete setup guide without dependency conflicts

[tendermonster]

Hello,

After fighting with dependency conflicts for a few days, I thought of sharing my final solution with you.
Basically, it is better to play it save and compile every program from source

setup conda env

conda create -n swin_od python=3.8

than clone the repo and cd to the directory

git clone https://github.com/SwinTransformer/Swin-Transformer-Object-Detection
cd Swin-Transformer-Object-Detection

---

install pytorch using pip instead of conda

---

most likely you will need to compile mmcv from scratch

git clone https://github.com/open-mmlab/mmcv.git
git switch 1.x # switch to the version that is required
pip install -r requirements/optional.txt
MMCV_WITH_OPS=1 pip install -e . -v
python .dev_scripts/check_installation.py # check the installation

---

most likely you will need to compile mmdet from scratch

clone mmdet switch to 2.x branch because 3.x branch is incompatible with this project

git clone https://github.com/open-mmlab/mmdetection.git
cd mmdetection
git switch 2.x
pip install -v -e .

verify that mmdet was installed correctly.

• there will be an example in the docs on how to do it

after that install nvidia apex as fallows:

git clone https://github.com/NVIDIA/apex
cd apex  
pip install -v --disable-pip-version-check --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./

After that there should not be any dependency conflicts or wired errors :)

[paultreadel]

Thank you for documenting these steps. I struggled for hours trying to setup this repo until I discovered this. I've now got everything installed with no conflict errors and the demo notebooks are working so I am 😄

[k-arthik-raj]

Which versions of pytorch, cuda versions did you guys use. Because I am trying with cuda 11.3 and pytorch 1.10.0 and am unable to install mmcv-full 1.3.17 and am struggling to find a solution to make it work with cuda 11.3.

[PRABS25]

MMCV_WITH_OPS=1 : The term 'MMCV_WITH_OPS=1' is not recognized as the name of a cmdlet, function, script
file, or operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
At line:1 char:1

• MMCV_WITH_OPS=1 pip install -e . -v

•   + CategoryInfo          : ObjectNotFound: (MMCV_WITH_OPS=1:String) [], CommandNotFoundException        
    + FullyQualifiedErrorId : CommandNotFoundException