QT Library on MacOS/OSX will not install cannot find old versions of Xcode
Sunday, October 21st, 2018I could not get the QT installer to work at all on MacOS 10.14 Mojave, It kept giving errors saying that the Xcode 5 (and some other old non-downloadable version of Xcode was missing. As a result it would not give me a list of QT versions/components to install…
Apparently QT is still trying to find Xcode in:
/Developer/Xcode.app/Contents/Developer
Apple no longer installs Xcode here. The new directory is
/Applications/Xcode.app/Contents/Developer
The following command fixed the install issues for me.
sudo /usr/bin/xcode-select -switch /Applications/Xcode.app/Contents/Developer
Details of this issue can be found as a bug for Qt 5.2 – Qt Bug 31878 description.