Can't Build QTWebEngine With Xcode 11.5 on MacOS 10.15.5

[ChiK]

I'm trying to build qt v5.15.0 from git.
I'm running Xcode 11.5 on MacOS 10.15.5.
However I get this warning.

Checking for platform supported... Using Xcode version , but at least version 10.0.0 is required to build Qt WebEngine or Qt Pdf.
WARNING: Using Xcode version , but at least version 10.0.0 is required to build Qt WebEngine or Qt Pdf.
WARNING: QtWebEngine will not be built.

Here are my commands.

git clone git://code.qt.io/qt/qt5.git
cd qt5
git checkout v5.15.0
perl init-repository --module-subset=default
cd..
mkdir v5.15.0
cd v5.15.0
../qt5/configure -developer-build -opensource -nomake examples -nomake tests --confirm-license -webengine-pepper-plugins -webengine-proprietary-codecs

I'd really appreciate any help.

[ChiK]

The following command fixed.

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer