Wifi Fundamentals Lesson 4 Exercise 2 not building, using nrf5340dk with nrf7002ek shield

[may_]

Hello,

I am using the nrf5340dk with nrf7002ek shield and trying to build the wifi fundamentals lesson 4 exercise 2 code (connecting to MQTT over TLS) but it isn't building. I'm using the code from here: https://github.com/NordicDeveloperAcademy/wifi-fund/blob/main/lesson4/wififund_less4_exer2_solution/boards/nrf5340dk_nrf5340_cpuapp_ns.conf

Here are the build logs:
[433/443] Building C object zephyr/lib/posix/options/CMakeFiles/lib__posix__options.dir/uname.c.obj
[434/443] Building C object zephyr/kernel/CMakeFiles/kernel.dir/dynamic_disabled.c.obj
[435/443] Linking C static library modules/nrf/modules/hostap/lib..__nrf__modules__hostap.a
[436/443] Linking C static library zephyr/lib/posix/options/liblib__posix__options.a
[437/443] Linking C static library zephyr/kernel/libkernel.a
[438/443] Linking C executable zephyr/zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map /Users/mayb/Documents/hello_world2/build/hello_world2/zephyr/zephyr_pre0.map
: && ccache /opt/nordic/ncs/toolchains/f8037e9b83/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -gdwarf-4 zephyr/CMakeFiles/zephyr_pre0.dir/misc/empty_file.c.obj -o zephyr/zephyr_pre0.elf zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj tfm/api_ns/interface/lib/s_veneers.o -fuse-ld=bfd -T zephyr/linker_zephyr_pre0.cmd -Wl,-Map=/Users/mayb/Documents/hello_world2/build/hello_world2/zephyr/zephyr_pre0.map -Wl,--whole-archive app/libapp.a zephyr/libzephyr.a zephyr/arch/common/libarch__common.a zephyr/arch/arch/arm/core/libarch__arm__core.a zephyr/arch/arch/arm/core/cortex_m/libarch__arm__core__cortex_m.a zephyr/arch/arch/arm/core/cortex_m/cmse/libarch__arm__core__cortex_m__cmse.a zephyr/arch/arch/arm/core/mpu/libarch__arm__core__mpu.a zephyr/lib/libc/newlib/liblib__libc__newlib.a zephyr/lib/libc/common/liblib__libc__common.a zephyr/lib/posix/options/liblib__posix__options.a zephyr/soc/soc/nrf5340/libsoc__nordic.a zephyr/subsys/random/libsubsys__random.a zephyr/subsys/net/libsubsys__net.a zephyr/subsys/net/l2/ethernet/libsubsys__net__l2__ethernet.a zephyr/subsys/net/l2/wifi/libsubsys__net__l2__wifi.a zephyr/subsys/net/ip/libsubsys__net__ip.a zephyr/subsys/net/lib/mqtt/libsubsys__net__lib__mqtt.a zephyr/subsys/net/lib/dhcpv4/libsubsys__net__lib__dhcpv4.a zephyr/subsys/net/lib/dns/libsubsys__net__lib__dns.a zephyr/subsys/net/conn_mgr/libsubsys__net__conn_mgr.a zephyr/drivers/clock_control/libdrivers__clock_control.a zephyr/drivers/console/libdrivers__console.a zephyr/drivers/entropy/libdrivers__entropy.a zephyr/drivers/gpio/libdrivers__gpio.a zephyr/drivers/mbox/libdrivers__mbox.a zephyr/drivers/pinctrl/libdrivers__pinctrl.a zephyr/drivers/serial/libdrivers__serial.a zephyr/drivers/timer/libdrivers__timer.a modules/nrf/lib/dk_buttons_and_leds/lib..__nrf__lib__dk_buttons_and_leds.a modules/nrf/subsys/nrf_security/src/zephyr/libmbedtls_zephyr.a modules/nrf/subsys/net/lib/wifi_credentials/libwifi_credentials.a modules/nrf/subsys/net/lib/wifi_mgmt_ext/lib..__nrf__subsys__net__lib__wifi_mgmt_ext.a modules/nrf/modules/trusted-firmware-m/lib..__nrf__modules__trusted-firmware-m.a modules/nrf/modules/trusted-firmware-m/libtfm_api_nrf.a modules/nrf/modules/hostap/lib..__nrf__modules__hostap.a modules/trusted-firmware-m/libtfm_api.a modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a -Wl,--no-whole-archive zephyr/kernel/libkernel.a -L"/opt/nordic/ncs/toolchains/f8037e9b83/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/thumb/v8-m.main/nofp" -L/Users/mayb/Documents/hello_world2/build/hello_world2/zephyr -lgcc zephyr/arch/common/libisr_tables.a -Wl,--gc-sections -Wl,--build-id=none -Wl,--sort-common=descending -Wl,--sort-section=alignment -Wl,-u,_OffsetAbsSyms -Wl,-u,_ConfigAbsSyms -nostdlib -static -Wl,-X -Wl,-N -Wl,--orphan-handling=warn -Wl,-no-pie -lm -Wl,-lc -L"/opt/nordic/ncs/toolchains/f8037e9b83/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi"/lib/thumb/v8-m.main/nofp -Wl,-lgcc -lc modules/nrf/subsys/nrf_security/src/libmbedtls.a modules/nrf/subsys/nrf_security/src/libmbedx509.a modules/nrf/subsys/nrf_security/src/libmbedcrypto.a /opt/nordic/ncs/v2.7.0/nrfxlib/crypto/nrf_oberon/lib/cortex-m33/soft-float/liboberon_mbedtls_3.0.15.a modules/nrf/subsys/nrf_security/src/libmbedcrypto_base.a -mcpu=cortex-m33 -mthumb -mabi=aapcs -mfp16-format=ieee /opt/nordic/ncs/v2.7.0/nrfxlib/crypto/nrf_oberon/lib/cortex-m33/soft-float/liboberon_3.0.15.a -lc && cd /Users/mayb/Documents/hello_world2/build/hello_world2/zephyr && /opt/nordic/ncs/toolchains/f8037e9b83/Cellar/cmake/3.21.0/bin/cmake -E true
/opt/nordic/ncs/toolchains/f8037e9b83/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd: modules/nrf/modules/hostap/lib..__nrf__modules__hostap.a(supp_main.c.obj): in function `iface_cb':
/opt/nordic/ncs/v2.7.0/nrf/modules/hostap/src/supp_main.c:391: undefined reference to `__device_dts_ord_6'
/opt/nordic/ncs/toolchains/f8037e9b83/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd: modules/nrf/modules/hostap/lib..__nrf__modules__hostap.a(supp_main.c.obj): in function `z_wpas_start':
/opt/nordic/ncs/v2.7.0/nrf/modules/hostap/src/supp_main.c:623: undefined reference to `__device_dts_ord_6'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FAILED: _sysbuild/sysbuild/images/hello_world2-prefix/src/hello_world2-stamp/hello_world2-build /Users/mayb/Documents/hello_world2/build/_sysbuild/sysbuild/images/hello_world2-prefix/src/hello_world2-stamp/hello_world2-build
cd /Users/mayb/Documents/hello_world2/build/hello_world2 && /opt/nordic/ncs/toolchains/f8037e9b83/Cellar/cmake/3.21.0/bin/cmake --build .
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /opt/nordic/ncs/toolchains/f8037e9b83/bin/cmake --build /Users/mayb/Documents/hello_world2/build

* The terminal process terminated with exit code: 1.
* Terminal will be reused by tasks, press any key to close it.

and here is the build configuration i'm using:


other than that, i am using the code directly from the github file. i do not have a app.overlay file and I did not change the ca_certificate value. i tried to update my cmakelists.txt file to this but it didn't do anything to fix the issue:

cmake_minimum_required(VERSION 3.20.0)

set(SHIELD nrf7002ek)

set(CONF_FILE "prj.conf")

set(BOARD nrf5340dk_nrf5340)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})

project(hello_world2)

target_sources(app PRIVATE src/main.c)

I am building on a mac with the nrf connect SDK v2.7.0 arm64 and toolchain 2.7.20240620 with toolchain variant zephyr.

Can you help me fix this? Thank you so much in advance!

[Marte Myrvold]

Hi,

Sysbuild support has not been added to the exercises in this course yet, so please make sure that the "Use sysbuild" option is unchecked when creating the build configuration.

Having this option checked will lead to the errors you are seeing.

Best regards,
Marte

[may_]

hello, this fixed building the app but now i am still unable to connect to wifi and i see this error in the serial monitor:

[00:00:00.487,884] <inf> wifi_nrf_bus: SPIM spi@a000: freq = 8 MHz
[00:00:00.487,945] <inf> wifi_nrf_bus: SPIM spi@a000: latency = 0
*** Booting nRF Connect SDK v2.7.0-5cb85570ca43 ***
*** Using Zephyr OS v3.6.99-100befc70c74 ***
[00:00:00.639,190] <inf> Lesson4_Exercise2: Initializing LED library
[00:00:00.639,282] <inf> Lesson4_Exercise2: Successfully Initialized LED library
[00:00:00.642,913] <dbg> net_sock_svc: socket_service_thread: (net_socket_service): Service WEST_TOPDIR/zephyr/subsys/net/lib/dns/resolve.c:70 has 2 pollable sockets
[00:00:00.643,859] <dbg> net_sock_svc: socket_service_thread: (net_socket_service): Monitoring 2 socket entries
[00:00:00.648,284] <dbg> net_ctx: net_context_bind: (wpa_supplicant_main): Context 0x2001cb14 bind to type 0x888e iface[1] 0x20019878 addr F4:CE:36:00:4F:67
[00:00:01.639,373] <inf> Lesson4_Exercise2: Waiting to connect to Wi-Fi
uart:~$ > wifi_cred add "wifiname" WPA2-PSK "wifipassword"
wifi_cred add "wifiname" WPA2-PSK "wifipassword"
uart:~$ > wifi_cred auto_connect
wifi_cred auto_connect
[00:00:07.781,097] <err> wifi_mgmt_ext: Connection request failed

even though i did not change any code besides adding more logging to prj.conf and i verified that i can connect to my wifi with other devices.

for context i am using an nrf5340dk with an nrf7002ek shield and here's what my build looks like:

i do not have an app.overlay file because i just used the sample code from the course. can you help me figure out why this isnt connecting?