mybinder doesn’t start up

[elizabethexpialadocious]

when launching the mybinder website for your code, mybinder fails to create a process giving the following error:
`
Step 36/52 : RUN chown ${NB_USER}:${NB_USER} ${REPO_DIR}
---> Using cache
---> 1012023c6ff0
Step 37/52 : ENV PATH=${HOME}/.local/bin:${REPO_DIR}/.local/bin:${PATH}
---> Using cache
---> 7e259ec8b997
Step 38/52 : ENV CONDA_DEFAULT_ENV=${KERNEL_PYTHON_PREFIX}
---> Using cache
---> c2d4573adb93
Step 39/52 : COPY --chown=1000:1000 src/environment.yml ${REPO_DIR}/environment.yml
---> Using cache
---> 0100c36cfc80
Step 40/52 : USER ${NB_USER}
---> Using cache
---> 573b8dcd3be0
Step 41/52 : RUN TIMEFORMAT='time: %3R' bash -c 'time ${MAMBA_EXE} env update -p ${KERNEL_PYTHON_PREFIX} --file "environment.yml" && time ${MAMBA_EXE} clean --all -f -y && ${MAMBA_EXE} list -p ${KERNEL_PYTHON_PREFIX} '
---> Running in 56cadc022b99

Looking for: ['python==3.6', 'numpy==1.12', 'scipy==0.19.1', 'scikit-learn==0.18.1', 'matplotlib', 'opencv==3.1', 'jupyter==1.0', 'notebook==5.4.1', 'pandas==0.22', 'theano', 'keras==2.1.5', 'mkl-service==1.1.2']

Could not solve for environment specs
Encountered problems while solving:

• package libnghttp2-1.46.0-ha19adfc_0 requires openssl >=3.0.0,<4.0a0, but none of the providers can be installed

The environment can't be solved, aborting the operation

�[91mtime: 33.055
�[0mRemoving intermediate container 56cadc022b99
The command '/bin/sh -c TIMEFORMAT='time: %3R' bash -c 'time ${MAMBA_EXE} env update -p ${KERNEL_PYTHON_PREFIX} --file "environment.yml" && time ${MAMBA_EXE} clean --all -f -y && ${MAMBA_EXE} list -p ${KERNEL_PYTHON_PREFIX} '' returned a non-zero code: 1
`

[mbeyeler]

I'm not surprised - it's been nearly 6 years since the release of this code. Note that there's also a second edition of the book now with updated code: https://www.packtpub.com/product/machine-learning-for-opencv-4-second-edition/9781789536300. I know this is not a very satisfying answer, but you might have better luck by setting up a conda environment on your local machine.