Heroku Zbar在您的系统上找不到libzbar（LoadError） [英] Heroku Zbar Didn't find libzbar on your system (LoadError)

问题描述

我有一个使用zbar进行条形码识别的rails应用程序。它在我的开发人员机器上工作正常，但是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在你的系统上找不到libzbar（LoadError）
 app / web.1：请安装zbar（http://zbar.sourceforge.net/）或设置ZBAR_LIB，如果它位于一个奇怪的地方
 app / web.1：FFI :: Library :: ffi_lib（）失败，错误：库名称列表不能为空
 app / web.1：from /app/vendor/bundle/ruby/2.0.0/gems/ zbar-0.2.2 / lib / zbar / lib.rb：9：在< 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：在'require'
 app / web.1：from /app/vendor/bundle/ruby/2.0.0/gems/zbar- 0.2.2 / lib / zbar.rb：3：在< 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'
  

$ b $ p这是我的gemfile;

pre $ gem'zbar'，'〜 > 0.2.2'


我的 /。buildpacks ：

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

为什么会发生这种情况？如何解决它？

解决方案

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

I have a rails application which uses zbar for barcode recognition. It works fine on my developer machine, but when i tried to deploy it to Heroku my commit was rejected with the following message:

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' 

Here is my gemfile;

gem 'zbar', '~> 0.2.2'

my /.buildpacks:

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

Why does this happen? How to get around it?

解决方案

please try in your console:

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

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

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