在我的jekyll项目中，有一个文件名为中文。当我在终端中运行bundle exec jekyll serve --drafts时，它报告一个错误：
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:511:in `rescue in eval_gemspec': (Bundler::Dsl::DSLError)
[!] There was an error parsing `Gemfile`:
[!] There was an error while loading `jekyll-theme-so-simple.gemspec`: invalid byte sequence in GBK. Bundler cannot continue.
# from E:/Github/shangchihh.github.io/jekyll-theme-so-simple.gemspec:14
# -------------------------------------------
# spec.add_development_dependency "rake", "~> 10.0"
> end
# # coding: utf-8
# -------------------------------------------
. Bundler cannot continue.
# from E:/Github/shangchihh.github.io/Gemfile:2
# -------------------------------------------
# source "https://rubygems.org"
> gemspec # source "https://rubygems.org"
# -------------------------------------------
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:502:in `eval_gemspec'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:440:in `block in load_gemspec_uncached'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/shared_helpers.rb:65:in `chdir'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/shared_helpers.rb:65:in `block in chdir'
from C:/Ruby25-x64/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/shared_helpers.rb:64:in `chdir'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:439:in `load_gemspec_uncached'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:425:in `load_gemspec'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:66:in `block in gemspec'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:66:in `map'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:66:in `gemspec'
from E:/Github/shangchihh.github.io/Gemfile:2:in `eval_gemfile'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:47:in `instance_eval'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:47:in `eval_gemfile'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/dsl.rb:12:in `evaluate'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/definition.rb:35:in `build'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:135:in `definition'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler.rb:101:in `setup'
from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.3/lib/bundler/setup.rb:20:in `<top (required)>'
from C:/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from C:/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
，gemspec文件的第14行是：
spec.files = `git ls-files -z`.split("\x0").select do |f|
此错误是由Ruby无法处理GBK字符集引起的吗？我该如何解决这个问题？