opcua/waterpump/simulationserver example does not build with Boot to Qt

/home/qt/RTA/B2Qt_6.9.0/6.9.0/Boot2Qt/imx93-11x11-lpddr4x-evk/toolchain/sysroots/x86_64-pokysdk-linux/usr/bin/qt-cmake -GNinja CMakeLists.txt -B build
cmake --build build --parallel
cmake --install build --prefix /home/qt/RTA/usr --config Debug
 

 CMake Warning at /home/qt/RTA/B2Qt_6.9.0/6.9.0/Boot2Qt/imx93-11x11-lpddr4x-evk/toolchain/sysroots/cortexa55-poky-linux/usr/lib/cmake/Qt6OpcUa/Qt6OpcUaMacros.cmake:11 (message):
  No value set for CMAKE_BUILD_TYPE.  Can't disable optimizations.
Call Stack (most recent call first):
  CMakeLists.txt:64 (qt_opcua_disable_optimizations_in_current_dir)
-- Configuring done (0.7s)
FAIL 16:48:33
CMake Error at /home/qt/RTA/B2Qt_6.9.0/6.9.0/Boot2Qt/imx93-11x11-lpddr4x-evk/toolchain/sysroots/cortexa55-poky-linux/usr/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:688 (add_executable):
  Cannot find source file:
    ../../../../src/plugins/opcua/open62541/qopen62541utils.cpp
  Tried extensions .c .C .c++ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm
  .ccm .cxxm .c++m .h .hh .h++ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90
  .f95 .f03 .hip .ispc
Call Stack (most recent call first):
  /home/qt/RTA/B2Qt_6.9.0/6.9.0/Boot2Qt/imx93-11x11-lpddr4x-evk/toolchain/sysroots/cortexa55-poky-linux/usr/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:639 (_qt_internal_create_executable)
  /home/qt/RTA/B2Qt_6.9.0/6.9.0/Boot2Qt/imx93-11x11-lpddr4x-evk/toolchain/sysroots/cortexa55-poky-linux/usr/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:938 (qt6_add_executable)
  CMakeLists.txt:28 (qt_add_executable)