build docker image error

[JiageWang]

Step 12/12 : RUN pip install --no-cache-dir -e .
 ---> Running in 10680a3a2218
Obtaining file:///SOLO
    ERROR: Command errored out with exit status 1:
     command: /opt/conda/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/SOLO/setup.py'"'"'; __file__='"'"'/SOLO/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info
         cwd: /SOLO/
    Complete output (8 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/SOLO/setup.py", line 251, in <module>
        sources=['src/compiling_info.cpp']),
      File "/SOLO/setup.py", line 103, in make_cuda_ext
        raise EnvironmentError('CUDA is required to compile MMDetection!')
    OSError: CUDA is required to compile MMDetection!
    No CUDA runtime is found, using CUDA_HOME='/usr/local/cuda'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

[WXinlong]

@JiageWang Please make sure CUDA is installed.

[liuhj86]

I have installed cuda and used it normally on other projects for a long time on my computer, but this still happened.

[BranVan]

I had the same problem, here's what worked for me.
Add this line to your docker file anywhere before the installation of SOLO i.e before line 19:
ENV FORCE_CUDA="1"

[JRBusiness]

I had the same problem, here's what worked for me. Add this line to your docker file anywhere before the installation of SOLO i.e before line 19: ENV FORCE_CUDA="1"

Had the same problem and this resolve my issue, thank you.