使用docker运行出现以下错误 #17
Description
系统版本：macOS13
系统架构：arm64
克隆项目后修改Dockerfile为以下内容：
FROM ruby:2.7.5
ENV WORKDIR=/usr/src/app
workdir $WORKDIR
RUN apt-get update && apt-get install -y cron && apt-get install -y vim
COPY Gemfile Gemfile.lock ./
RUN bundle install
CMD ["tail", "-f", "/dev/null"]
然后在容器内运行 bundle exec bin/ZMediumToMarkdown -p https://medium.com/javarevisited/stop-using-if-else-statements-in-java-57234e13bf9d出现错误，错误如下：
root@16710832f503:/usr/src/app# bundle exec bin/ZMediumToMarkdown -p https://medium.com/javarevisited/stop-using-if-else-statements-in-java-57234e13bf9d
#https://github.com/ZhgChgLi/ZMediumToMarkdown
You have read and agree with the Disclaimer.
[stop-using-if-el...]-Downloading Post...
#Error: NoMethodError undefined method `dig' for "":String
/usr/src/app/lib/Post.rb:77:in `parsePostInfoFromPostContent'
/usr/src/app/lib/ZMediumFetcher.rb:150:in `downloadPost'
bin/ZMediumToMarkdown:99:in `initialize'
bin/ZMediumToMarkdown:117:in `new'
bin/ZMediumToMarkdown:117:in `<top (required)>'
/usr/local/lib/ruby/2.7.0/bundler/cli/exec.rb:63:in `load'
/usr/local/lib/ruby/2.7.0/bundler/cli/exec.rb:63:in `kernel_load'
/usr/local/lib/ruby/2.7.0/bundler/cli/exec.rb:28:in `run'
/usr/local/lib/ruby/2.7.0/bundler/cli.rb:476:in `exec'
/usr/local/lib/ruby/2.7.0/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/usr/local/lib/ruby/2.7.0/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/usr/local/lib/ruby/2.7.0/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/usr/local/lib/ruby/2.7.0/bundler/cli.rb:30:in `dispatch'
/usr/local/lib/ruby/2.7.0/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/usr/local/lib/ruby/2.7.0/bundler/cli.rb:24:in `start'
/usr/local/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/libexec/bundle:46:in `block in <top (required)>'
/usr/local/lib/ruby/2.7.0/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/usr/local/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/libexec/bundle:34:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'
#Please feel free to open an Issue or submit a fix/contribution via Pull Request on:
#https://github.com/ZhgChgLi/ZMediumToMarkdown