Yocto Qt6: Qt6QuickTools dependency missing

Lenni

I'm working on getting Qt6 to work on an embedded system. But I am getting the following error:

Qt6Quick could not be found because dependency Qt6QuickTools could not be found.
Could NOT find Qt6QuickTools (missing: Qt6QuickTools_DIR)

Here is the Yocto recipe:

SUMMARY = "Qt application recipe"   
DESCRIPTION = "This recipe builds the Application"   
LICENSE = "CLOSED"   
LIC_FILES_CHKSUM = ""

DEPENDS += "qtbase qtdeclarative qtcharts qtimageformats qtscxml qtmultimedia qtquick3d"

RDEPENDS:${PN} += "qtsvg \
qtdeclarative-qmlplugins \
ttf-dejavu-sans \
ttf-dejavu-serif \
"

SRC_URI = "github url"
SRCREV = "github commit hash"

S = "${WORKDIR}/git"

inherit qt6-cmake
     
do_install() {   
    install -d ${D}/opt/app/   
    install -m 0755 app ${D}/opt/app/   
    install -m 0755 ${S}/mod/setup.sh ${D}/opt/app/
    cp -r ${S}/*  ${D}/opt/app/
}   
    
FILES:${PN} += "/opt/app/* "

Here is the CMake for the Qt project:

cmake_minimum_required(VERSION 3.16)
project(project VERSION 0.1 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Qt6 REQUIRED COMPONENTS Quick)
find_package(Qt6 REQUIRED COMPONENTS Core)
find_package(Qt6 REQUIRED COMPONENTS QuickControls2)
find_package(Qt6 REQUIRED COMPONENTS Qml)
find_package(Qt6 REQUIRED COMPONENTS Charts)

set(PROJECT_SOURCES
        main.cpp
        ...
        qml.qrc
)

qt_add_executable(project
    MANUAL_FINALIZATION
    ${PROJECT_SOURCES}
)

target_link_libraries(project PRIVATE Qt6::Core)
target_link_libraries(project PRIVATE Qt6::Quick)
target_link_libraries(project PRIVATE Qt6::QuickControls2)
target_link_libraries(project  PRIVATE Qt6::Charts)
target_link_libraries(project PRIVATE Qt6::Qml)


if(QT_VERSION_MAJOR EQUAL 6)
    qt_import_qml_plugins(project)
    qt_finalize_executable(project)
endif()

I have tried several different versions of Qt. It works fine with Qt5, but fails with Qt6. Also, the Qt6 version runs and works fine during development on Windows. I have struggled to find anything online about Qt6QuickTools.