问题描述
我刚刚安装了 Qt 5.5 并且第一次在 OS X 上使用 Qt Creator.当我第一次安装 Qt 时，它给了我一条错误消息Xcode 5 not installed"，我认为这很奇怪，(我有 Xcode7 测试版)，但安装还是成功完成.
I just installed Qt 5.5 and am using Qt Creator for the first time on OS X. When I first installed Qt, it gave me an error message 'Xcode 5 not installed' which I thought was strange, (I have the Xcode 7 beta), but the install completed successfully anyways.
现在，当我开始或打开一个项目时，出现错误:
Now, when I start or open a project, I get the error:
项目错误:Xcode 设置不正确.您可能需要通过运行/usr/bin/xcodebuild 来确认许可协议.
Project ERROR: Xcode not set up properly. You may need to confirm the license agreement by running /usr/bin/xcodebuild.
当我在终端中运行 /usr/bin/xcodebuild 时，我得到以下信息:
When I run /usr/bin/xcodebuild in Terminal, I get the following:
xcode-select: 错误:工具 'xcodebuild' 需要 Xcode，但活动开发者目录 '/Library/Developer/CommandLineTools' 是命令行工具实例
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
我不确定 Xcode 与 Qt Creator 有什么关系，除非它与访问库以实现跨平台兼容性有关，但有没有办法解决这个问题?
I'm not sure what Xcode has to do with Qt Creator, unless it has something to do with accessing libraries for cross-platform compatibility, but is there a way to fix this issue?
推荐答案
>= Xcode 8
在 Xcode 8 中，正如 Bruce 所说，当 Qt 试图寻找 xcrun 而它应该寻找 xcodebuild 时，就会发生这种情况.
In Xcode 8, as Bruce said, this happens when Qt tries to find xcrun when it should be looking for xcodebuild.
打开文件:
Qt_install_folder/5.7/clang_64/mkspecs/features/mac/default_pre.prf
替换:
isEmpty($$list($$system("/usr/bin/xcrun -find xcrun 2>/dev/null")))
与:
isEmpty($$list($$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")))
~>Xcode 8
Xcode 8 之前，在安装 Xcode 后安装命令行工具时会出现此问题.发生的事情是 Xcode-select 开发者目录被指向 /Library/Developer/CommandLineTools.
Before Xcode 8, this problem occurs when command line tools are installed after Xcode is installed. What happens is the Xcode-select developer directory gets pointed to /Library/Developer/CommandLineTools.
使用以下命令将 Xcode-select 指向正确的 Xcode Developer 目录:
Point Xcode-select to the correct Xcode Developer directory with the command:
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
使用命令确认许可协议:
Confirm the license agreement with the command:
sudo xcodebuild -license
这将提示您通读许可协议.
This will prompt you to read through the license agreement.
输入同意以接受条款.
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