CMake can't find source file for mcuboot

[5iemen5]

I am in a python virtual environment set for Zephyr and have placed my project inside a /samples/basic/ directory to build, and upon trying to build it the CMake I get an error:

CMake Error at CMakeLists.txt:13 (target_sources):
  Cannot find source file:

    ../../zephyr/subsys/dfu/boot/mcuboot.c

  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


CMake Error at /home/user/zephyrproject/zephyr/cmake/modules/extensions.cmake:457 (add_library):
  No SOURCES given to target: app
Call Stack (most recent call first):
  /home/user/zephyrproject/zephyr/cmake/modules/kernel.cmake:218 (zephyr_library_named)
  /home/user/zephyrproject/zephyr/cmake/modules/zephyr_default.cmake:142 (include)
  /home/user/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  /home/user/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:8 (find_package)

My CMakeLists.txt is as follows:

    cmake_minimum_required(VERSION 3.13.1)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})

project(app LANGUAGES C)

#target_sources(app PRIVATE src/main.c modules/sensors/boards/htu21/src/htu21.c modules/kernel/src/kernel.c)
target_sources(
    app PRIVATE src/main.c
    modules/sensors/boards/htu21/src/htu21.c
    modules/I2C/src/i2c_communication.c
    modules/sensors/temperature/src/temperature.c
    modules/sensors/humidity/src/humidity.c
    modules/wifi/src/wifi.c
    modules/mqtt/client/src/mqtt_client.c
    ../../zephyr/subsys/dfu/boot/mcuboot.c
)


#target_sources(app PRIVATE src/main.c)


target_include_directories(
    app PRIVATE ../../modules/fs/fatfs/include/
    ../../bootloader/mcuboot/boot/bootutil/include
    ../../bootloader/mcuboot/boot/zephyr/include/
)

How can I link that .c file inside a CMake so it's built properly? I'm new to changing a CMake by hand, so here is most probably some misunderstanding

[iamadahn]

If I understood you correctly the path must be "../../../subsys/dfu/boot/mcuboot.c", not "../../zephyr/subsys/dfu/boot/mcuboot.c"