Undefined symbols for architecture x86_64: QStringView::toWCharArray(wchar_t*) const

agent:2019/03/12 06:10:07 build.go:197: /Applications/Xcode10.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -Wl,-syslibroot,/Applications/Xcode10.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -mmacosx-version-min=10.12 -Wl,-dead_strip -Wl,-rpath,@executable_path/../Frameworks -o ../../bin/qmlimportscanner .obj/main.o   -L/Users/qt/work/qt/qtdeclarative/lib -lQt5QmlDevTools -L/Users/qt/work/install/lib -lQt5Bootstrap -framework Foundation -framework CoreServices   
agent:2019/03/12 06:10:07 build.go:197: Undefined symbols for architecture x86_64:
agent:2019/03/12 06:10:07 build.go:197:   "QStringView::toWCharArray(wchar_t*) const", referenced from:
agent:2019/03/12 06:10:07 build.go:197:       _main in main.o
agent:2019/03/12 06:10:07 build.go:197: ld: symbol(s) not found for architecture x86_64
agent:2019/03/12 06:10:07 build.go:197: clang: error: linker command failed with exit code 1 (use -v to see invocation)
agent:2019/03/12 06:10:07 build.go:197: make[2]: *** [../../bin/qmlimportscanner] Error 1
agent:2019/03/12 06:10:07 build.go:197: make[1]: *** [sub-qmlimportscanner-make_first] Error 2
agent:2019/03/12 06:10:07 build.go:197: make: *** [sub-tools-make_first] Error 2