Kconfig selection error in lwm2m client project

[barely_metal]

I am working on adding a new LWM2M object (3302 Presence) to the lwm2m client project from SDK version 1.9.1. After creating and including the file "Kconfig.ipso_presence_sensor" which is located in the ipso folder, I now receive the below build errors:

warning: the default selection LWM2M_IPSO_PRESENCE_VERSION_1_0 (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:24, c:\code\TWPS\build\subsys\net\lib\lwm2m\Kconfig.ipso:310) of <choice> (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:20) is not contained in the choice

warning: the choice symbol LWM2M_IPSO_PRESENCE_VERSION_1_0 (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:24, c:\code\TWPS\build\subsys\net\lib\lwm2m\Kconfig.ipso:310) is defined with a prompt outside the choice

warning: the choice symbol LWM2M_IPSO_PRESENCE_VERSION_1_1 (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:27, c:\code\TWPS\build\subsys\net\lib\lwm2m\Kconfig.ipso:313) is defined with a prompt outside the choice

warning: the choice symbol LWM2M_IPSO_PRESENCE_VERSION_1_0 (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:24, c:\code\TWPS\build\subsys\net\lib\lwm2m\Kconfig.ipso:310) is defined with a prompt outside the choice

warning: the choice symbol LWM2M_IPSO_Parsing C:/code/TWPS/Kconfig
Loaded configuration 'C:/code/TWPS/build/zephyr/.config'
PRESENCE_VERSION_1_1 (defined at C:\code\TWPS\src\ipso\Kconfig.ipso_presence_sensor:27, c:\code\TWPS\build\subsys\net\lib\lwm2m\Kconfig.ipso:313) is defined with a prompt outside the choice

error: Aborting due to Kconfig warnings

Here is the file code:

#

# Copyright (c) 2021 Nordic Semiconductor ASA

#

# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause

#

config LWM2M_APP_PRESENCE

    bool

    help

      This IPSO object should be used to report detected presence

if LWM2M_APP_PRESENCE

config LWM2M_IPSO_PRESENCE_INSTANCE_COUNT

    int

    default 3

    help

      Total count of IPSO Presence instances available to the LWM2M client.

choice

    prompt "Select IPSO Presence object version"

    default LWM2M_IPSO_PRESENCE_VERSION_1_0

config LWM2M_IPSO_PRESENCE_VERSION_1_0

    bool "Version 1.0"

config LWM2M_IPSO_PRESENCE_VERSION_1_1

    bool "Version 1.1"

endchoice # IPSO Presence object version

endif # LWM2M_APP_PRESENCE

I am not sure why I am receiving this error since the file contents are formatted exactly like the file Kconfig.ipso_colour_sensor which is located in the same folder.

[Hakon]

Hello,

what board are you building for?

[barely_metal]

nRF9160-DK

[Hakon]

Did you include the file in CMakeLists.txt?

[barely_metal]

Yes. Here is the contents of CMakeLists.txt:

#
# Copyright (c) 2021 Nordic Semiconductor
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

target_sources_ifdef(CONFIG_LWM2M_IPSO_APP_COLOUR_SENSOR
app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/ipso_colour_sensor.c)

target_sources_ifdef(CONFIG_LWM2M_APP_PRESENCE
app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/ipso_presence.c)

[Hakon]

choice

    prompt "Select IPSO Presence object version"

    default LWM2M_IPSO_PRESENCE_VERSION_1_0

Did you mean to write

choice LWM2M_IPSO_PRESENCE_VERSION

    prompt "Select IPSO Presence object version"

    default LWM2M_IPSO_PRESENCE_VERSION_1_0

?