我正在尝试让rasa-duckling在树莓派上的docker中工作，但无法构建它。
official image使用haskell:8，我正在尝试使用经过修改的图像-rpi-haskell，该图像在raspbian上已安装haskell。
该版本扩展到str[..<index]
str[index...]
，然后找不到合适的.cabal文件。
我以前没有使用过haskell，也无法找出解决方法。
感谢您提供修复方面的帮助。
Dockerfile
RUN stack setup错误：
FROM tgolson/rpi-haskell
RUN apt-get update -qq && \
apt-get install -qq -y libpcre3 libpcre3-dev build-essential --fix-missing --no-install-recommends && \
apt-get clean && \
rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
RUN mkdir /log
RUN mkdir duckling
WORKDIR duckling
RUN apt-get install -y git
RUN git clone https://github.com/RasaHQ/duckling.git
WORKDIR duckling
RUN sudo apt-get install llvm-3.7
RUN ln -s /usr/bin/opt-3.7 /usr/bin/opt
RUN ln -s /usr/bin/llc-3.7 /usr/bin/llc
RUN stack update
ADD stack.yaml .
RUN stack setup
# NOTE:`stack build` will use as many cores as are available to build
# in parallel. However, this can cause OOM issues as the linking step
# in GHC can be expensive. If the build fails, try specifying the
# '-j1' flag to force the build to run sequentially.
RUN stack install
EXPOSE 8000
CMD ["duckling-example-exe", "--no-access-log", "--no-error-log"]