为什么我会收到此错误？
invalid byte sequence in UTF-8
用于加载图像：
= image_tag 'features_home/show1.png'
编辑
我注意到这个问题发生在我进行捆绑更新之后,任何图像都会出现错误..我会尝试在此处添加详细信息：
堆栈跟踪：
Rendered home/home.html.haml within layouts/application (229.9ms)
Completed 500 Internal Server Error in 1047ms
invalid byte sequence in UTF-8 excluded from capture: DSN not set
ActionView::Template::Error (invalid byte sequence in UTF-8):
81: / Carousel items
82: .carousel-inner
83: .active.item
84: = image_tag 'features_home/show1.png'
85: -#.carousel-caption
86: -# %h4
87: -# %p
app/views/home/home.html.haml:84:in `block in _app_views_home_home_html_haml__623651309533727079_70331260863620'
app/views/home/home.html.haml:33:in `_app_views_home_home_html_haml__623651309533727079_70331260863620'
lib/rack/SEOredirect.rb:20:in `call'
Rendered /Users/Apple/.rvm/gems/ruby-2.2.2@myapp/gems/actionpack-4.2.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (115.6ms)
Rendered /Users/Apple/.rvm/gems/ruby-2.2.2@myapp/gems/actionpack-4.2.0/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (23.1ms)
Rendered /Users/Apple/.rvm/gems/ruby-2.2.2@myapp/gems/actionpack-4.2.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.7ms)
Rendered /Users/Apple/.rvm/gems/ruby-2.2.2@myapp/gems/actionpack-4.2.0/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within rescues/layout (237.9ms)
捆绑更新前后的Gemfile.lock：https://gist.github.com/hopewise/35c2a98b13ac646b65770feb2f3c7ec8
完整追踪：
https://gist.github.com/hopewise/551169518a5938647dc767d3de393cd4
我不知道哪个宝石造成了这个问题..
解决方法
这似乎是Haml用于解析image_tag指令路径的less-rails gem中的错误.
在调用image_tag时,less-rails最终会尝试扫描文件所依赖的资产,但可能会无意中使用非文本文件.这会导致您遇到的错误.
项目中(有点过时的)分支上的fix exists,用于正确验证路径.我们可以参加测试：
gem 'less-rails',github: 'Metaskills/less-rails',branch: 'depends_only_on_less_files'
有关更多详细信息,请参阅this ticket.正如那里所建议的那样,您可能需要验证代码是否使用了适合图像的路径.