failed to determine path to aas directory

环境：win7 32位，vs2013 英文版,webkit-r174650

问题:编译成功webkit,运行WinLauncher.exe,报错：failed to determine path to aas directory

百度了一下，网上说修改C:\cygwin\home\ttcck\WebKit\Tools\win\DLLLauncher\DLLLauncherMain.cpp中的常量pathPrefix 为：static const wstring pathPrefix = L"C:\\Program Files (x86)\\Safari\\Apple Application Support";

但是webkit-r174650里面已经改成

const wstring& pathPrefix = appleApplicationSupportDirectory();

继续看

static wstring appleApplicationSupportDirectory()
{
    return applePathFromRegistry(L"SOFTWARE\\Apple Inc.\\Apple Application Support", L"InstallDir");
}

发现我的注册表中没有这一项，我的另外一台电脑却有这一项，应该缺少安装苹果的软件，把safari,quicktimesdk重装还是不行，只剩下quicktime了，安装之后，注册表就有了

参考：

http://blog.youkuaiyun.com/dreamkid/article/details/11859143

http://blog.youkuaiyun.com/huang3838438/article/details/7962023