Capybara Webkit运行时警告：类在

Question

中实现当我运行rspec时，我从webkit收到一系列警告。我正在使用从brew安装的capybara-webkit和qt。我当然很想解决这些问题。谢谢你的帮助。

警告，如：

objc[97388]: Class WebCoreMovieObserver is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebCoreSharedBufferData is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebVideoFullscreenWindow is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebVideoFullscreenController is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebVideoFullscreenHUDWindowController is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebVideoFullscreenHUDWindow is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebWindowFadeAnimation is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[97388]: Class WebWindowScaleAnimation is implemented in both /usr/local/Cellar/qt/4.8.0/lib/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 

EDIT “在这两个实施了”：我只是在涉及从brew安装qt答案感兴趣。谢谢。

Answer 1

我建议下载并使用预编译版本的Qt库。

我试图建立使用MacPorts并有困难。 Qt网站已经为此构建了二进制文件。在我的情况下，它工作正常。

我一直在MacOS X 10.6和10.7

Answer 2

道歉使用水豚，WebKit的与预建的Qt近一年，没有问题......这属于上@ shigeya的答案评论。

预构建的Qt二进制文件不能解决这个问题。刚刚安装了4.8.2，与brew remove --force qt一起，导致：

objc[67716]: Class WebCoreMovieObserver is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebCoreSharedBufferData is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebVideoFullscreenWindow is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebVideoFullscreenController is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebVideoFullscreenHUDWindowController is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebVideoFullscreenHUDWindow is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebWindowFadeAnimation is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined. 
objc[67716]: Class WebWindowScaleAnimation is implemented in both /Library/Frameworks/QtWebKit.framework/Versions/4/QtWebKit and /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit. One of the two will be used. Which one is undefined.