Question

我有一个使用zbar进行条形码识别的rails应用程序。它在我的开发人员计算机上工作正常，但当我尝试将其部署到Heroku时，我的提交被拒绝，并显示以下消息：

app/web.1:  /app/vendor/bundle/ruby/2.0.0/gems/zbar-0.2.2/lib/zbar/lib.rb:12:in `rescue in <module:ZBar>': Didn't find libzbar on your system (LoadError) 
app/web.1:  Please install zbar (http://zbar.sourceforge.net/) or set ZBAR_LIB if it's in a weird place 
app/web.1:  FFI::Library::ffi_lib() failed with error: library names list must not be empty 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/zbar-0.2.2/lib/zbar/lib.rb:9:in `<module:ZBar>' 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/zbar-0.2.2/lib/zbar/lib.rb:1:in `<top (required)>' 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/zbar-0.2.2/lib/zbar.rb:3:in `require' 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/zbar-0.2.2/lib/zbar.rb:3:in `<top (required)>' 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:in `require' 
app/web.1:  from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:in `block (2 levels) in require'

这是我的gemfile;

gem 'zbar', '~> 0.2.2'

我的/.buildpacks：

https://github.com/ballantyne/heroku-buildpack-zbar
https://github.com/heroku/heroku-buildpack-ruby.git

为什么会这样？如何绕过它？

Answer 1

请在您的控制台中尝试：

heroku config:set ZBAR_LIB=/app/vendor/lib/libzbar.so

来源：https://github.com/willglynn/ruby-zbar/issues/8

Heroku Zbar没有在您的系统上找到libzbar（LoadError）

1 个答案: