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安装 qrencoder 宝石在 ox 上的安装,用于铁路上的红宝石项目
原标题:install qrencoder gem on osx for ruby on rails project

我正试图在我的马氏10.7.4上安装克伦coder宝石,用于铁路项目上的红宝石。

当我尝试宝石安装 qrencoder 在这里,我得到的是:

ERROR: Error installing qrencoder: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb checking for qrencode.h... yes checking for QRinput_new() in -lqrencode... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.

The mkmf.log file does not say anything other than the above. I have qrencode-3.3.0 installed ok with brew but the gem install fails: any idea ?

当我输入 qrencode, 这就是我得到的:

"dyld: Library not loaded: /usr/local/lib/libqrencode.3.dylib Referenced from: /usr/local/bin/qrencode Reason: Incompatible library version: qrencode requires version 7.0.0 or later, but libqrencode.3.dylib provides version 5.0.0 Trace/BPT trap: 5"

问题回答

首个通过家庭爱好者安装 libqrencode :

  brew install qrencode

然后再试着安装宝石:

  gem install qrencoder

https://github.com/harrisj/qrencoder 上有更详细的说明,如果你没有家庭兄弟和/或希望从来源汇编的话。

在 Ubuntu 12.04 上安装 qrencode 命令:

sudo apt-get install qrencode libqrencode-dev




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