README.md Error message

[daylong-com]

When I used the command to build, a compilation error occurred.

❯ west build -b native_posix samples/subsys/display/cfb -d build
-- west build: generating a build system
Loading Zephyr default modules (Zephyr base).
-- Application: /workdir/zephyr-sdk/samples/subsys/display/cfb
-- CMake version: 3.28.3
-- Found Python3: /opt/python/venv/bin/python3 (found suitable version "3.12.3", minimum required is "3.10") found components: Interpreter 
-- Cache files will be written to: /home/user/.cache/zephyr
-- Zephyr version: 4.2.99 (/workdir/zephyr-sdk)
-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
No board named 'native_posix' found. Did you mean:

native_sim

Run 'west boards' for the full list.
CMake Error at /workdir/zephyr-sdk/cmake/modules/boards.cmake:225 (message):
  Invalid BOARD; see above.
Call Stack (most recent call first):
  /workdir/zephyr-sdk/cmake/modules/zephyr_default.cmake:131 (include)
  /workdir/zephyr-sdk/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  /workdir/zephyr-sdk/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:5 (find_package)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -DWEST_PYTHON=/opt/python/venv/bin/python3 -B/workdir/zephyr-sdk/build -GNinja -DBOARD=native_posix -S/workdir/zephyr-sdk/samples/subsys/display/cfb

Until I made the change to:

❯ west build -b native_sim samples/subsys/display/cfb -d build
-- west build: generating a build system
Loading Zephyr default modules (Zephyr base (cached)).
-- Application: /workdir/zephyr-sdk/samples/subsys/display/cfb
-- CMake version: 3.28.3
-- Cache files will be written to: /home/user/.cache/zephyr
-- Zephyr version: 4.2.99 (/workdir/zephyr-sdk)
-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
-- Board: native_sim, qualifiers: native
-- Found host-tools: zephyr 0.17.4 (/opt/toolchains/zephyr-sdk-0.17.4)
-- Found toolchain: host (gcc/ld)
-- Found Dtc: /opt/toolchains/zephyr-sdk-0.17.4/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.7.0", minimum required is "1.4.6") 
-- Found BOARD.dts: /workdir/zephyr-sdk/boards/native/native_sim/native_sim.dts
-- Generated zephyr.dts: /workdir/zephyr-sdk/build/zephyr/zephyr.dts
-- Generated pickled edt: /workdir/zephyr-sdk/build/zephyr/edt.pickle
-- Generated devicetree_generated.h: /workdir/zephyr-sdk/build/zephyr/include/generated/zephyr/devicetree_generated.h

warning: STDOUT_CONSOLE (defined at lib/libc/Kconfig:169) was assigned the value 'y' but got the
value 'n'. Check these unsatisfied dependencies: (!(NATIVE_LIBRARY && EXTERNAL_LIBC)) (=n). See
http://docs.zephyrproject.org/latest/kconfig.html#CONFIG_STDOUT_CONSOLE and/or look up
STDOUT_CONSOLE in the menuconfig/guiconfig interface. The Application Development Primer, Setting
Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be helpful
too.

Parsing /workdir/zephyr-sdk/Kconfig
Loaded configuration '/workdir/zephyr-sdk/boards/native/native_sim/native_sim_defconfig'
Merged configuration '/workdir/zephyr-sdk/samples/subsys/display/cfb/prj.conf'
Configuration saved to '/workdir/zephyr-sdk/build/zephyr/.config'
Kconfig header saved to '/workdir/zephyr-sdk/build/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: /usr/bin/ld.bfd (found version "2.42") 
-- The C compiler identification is GNU 13.3.0
-- The CXX compiler identification is GNU 13.3.0
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/gcc
-- Found PkgConfig: /usr/bin/pkg-config (found version "1.8.1") 
-- Checking for one of the modules 'sdl2'
-- Using ccache: /usr/local/bin/ccache
-- Found gen_kobject_list: /workdir/zephyr-sdk/scripts/build/gen_kobject_list.py
-- Configuring done (5.4s)
-- Generating done (0.0s)
-- Build files have been written to: /workdir/zephyr-sdk/build
-- west build: building application
[1/104] Preparing syscall dependency handling

[3/104] Generating include/generated/zephyr/version.h
-- Zephyr version: 4.2.99 (/workdir/zephyr-sdk), build: v4.2.0-3775-g377926ca0d3a
[102/104] Linking C executable zephyr/zephyr.elf
Generating files from /workdir/zephyr-sdk/build/zephyr/zephyr.elf for board: native_sim
[104/104] Running utility command for native_runner_executable
❯ west build -t run
-- west build: running target run
[2/3] cd /workdir/zephyr-sdk/build && /workdir/zephyr-sdk/build/zephyr/zephyr.exe
*** Booting Zephyr OS build v4.2.0-3775-g377926ca0d3a ***
Initialized sdl_dc
[00:00:00.000,000] <dbg> cfb: cfb_framebuffer_init: number of fonts 3
font width 10, font height 16
font width 15, font height 24
font width 20, font height 32
x_res 320, y_res 240, ppt 8, rows 30, cols 320
^C
Stopped at 36.660s
ninja: build stopped: interrupted by user.