问题
I am a Windows/Linux developer who occasionally builds for OS X - particularly in Qt.
I have a simple Qt project that I have been developing on Windows. I now wish to build it on OS X.
I am running Yosemite. I have installed Xcode 7 and am attempting to install Qt 5.5.
When I run the Qt installer, immediately after the prompt to log in to Qt (which is successful), I receive the following error:
You need to install Xcode version 5.0.0.
I have attempted to locate Xcode 5.0.0 on the Apple Developer site, but this is 2 major versions behind the most recent version, and I cannot even find an installer for it.
More to the point, I do wonder why the most recent version of Qt requires a version of Xcode that is considered so old by Apple that it's not even available.
How do I overcome this problem so that I can get Qt installed on OS X?
回答1:
I ran into the same problem and solved it by following the instructions here. This link describes a similar, but slightly different installer issue.
To summarize, you need to ensure that the Xcode command line tools are installed and set up correctly. I already had them installed, but had to go into Preferences -> Locations in Xcode and set the dropdown to the currently installed version.
The link shows an earlier version of Xcode where the path is actually Preferences -> Downloads -> Components.
Once I'd made this change, the installer continued successfully.
回答2:
The solution that worked for me (on OSX Sierra XCode 8.2.1) is to open XCode Preferences -> Locations.
There is a drop-down menu named Command Line Tools. Select the available XCode version here. Then restart the Qt Creator installation.
回答3:
taken from the link above, this resolved my issue:
sudo /usr/bin/xcode-select -switch /Applications/Xcode.app/Contents/Developer
回答4:
For me closing the prompt and smashing keys (alt F4, I know that its not windows) before the next prompt opened worked... qt is running fine now, as it doesn't need the old version.
回答5:
you can find the old version of XCode on the the Apple offical site here and download .dmg of xcode 5 or 6.1 for example :
I do this and it's ok for me.
来源：https://stackoverflow.com/questions/31554125/attempt-to-install-qt-on-os-x-gives-you-need-to-install-xcode-5-0-0-but-this