我在windows机器上下载了ruby和Jekyll作为gem，现在我想测试我制作的一个网站，但是Jekyll服务器打开，然后关闭，是否有人对我能做些什么来解决这个问题有任何线索。谢谢你! !
这里是错误
> C:Users30697Downloads
λ jekyll serve
Configuration file: none
Source: C:/Users/30697/Downloads
Destination: C:/Users/30697/Downloads/_site
Incremental build: disabled. Enable with --incremental
Generating...
------------------------------------------------
Jekyll 4.2.1 Please append `--trace` to the `serve` command
for any additional information or backtrace.
------------------------------------------------
C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/utils.rb:141:in `initialize': Permission denied @ rb_sysopen - C:/Users/30697/Downloads/FirefoxPortable/Data/profile/parent.lock (Errno::EACCES)
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/utils.rb:141:in `open'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/utils.rb:141:in `has_yaml_header?'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:52:in `block in read_directories'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:48:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:48:in `read_directories'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:89:in `block in retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:60:in `read_directories'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:89:in `block in retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:60:in `read_directories'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:89:in `block in retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:86:in `retrieve_dirs'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:60:in `read_directories'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/reader.rb:16:in `read'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/site.rb:181:in `read'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/site.rb:78:in `process'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:28:in `process_site'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/commands/build.rb:65:in `build'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/commands/build.rb:36:in `process'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `block in process_with_graceful_fail'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `process_with_graceful_fail'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve.rb:86:in `block (2 levels) in init_with_program'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `block in execute'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `each'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `execute'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mercenary-0.4.0/lib/mercenary/program.rb:44:in `go'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mercenary-0.4.0/lib/mercenary.rb:21:in `program'
from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/jekyll-4.2.1/exe/jekyll:15:in `<top (required)>'
from C:/Ruby30-x64/bin/jekyll:25:in `load'
from C:/Ruby30-x64/bin/jekyll:25:in `<main>'
C:Users30697Downloads
您正在Downloads的根目录下运行jekyll serve。Jekyll将处理该文件夹中的每个子文件夹，可以是你在那里的任何东西。可能跟杰基尔一点关系都没有。这会把杰基尔弄糊涂的。
为你的Jekyll项目创建一个子文件夹，然后在那里运行jekyll serve。
的例子:
> jekyll new mysite
> cd mysite <-- very important!!!
> jekyll serve