Attempt to assign the value 'x' to the undefined symbol 'y'

Question

OS: Windows 10 
 NRF Repository at branch master, commit bd67811aa123a49cb36991be886f3fafb4730449. Zephyr version: 2.1.0 SES version: 4.20a 
 Have tried running SES on administrator. 
 Log: Loading solution asset_tracker.emProject
Executing load commands
cmake -GNinja -DBOARD=nrf9160_pca10090ns -DBOARD_DIR=C:/ncs2/zephyr/boards/arm/nrf9160_pca10090 -DZEPHYR_TOOLCHAIN_VARIANT=gnuarmemb -DGNUARMEMB_TOOLCHAIN_PATH=C:/gnuarmemb -BC:/ncs2/nrf/applications/asset_tracker/build -HC:/ncs2/nrf/applications/asset_tracker -DPYTHON_EXECUTABLE=C:/Program Files (x86)/Microsoft Visual Studio/Shared/Python37_64/python.exe -DEXTRA_KCONFIG_TARGETS=menuconfig_ses -DEXTRA_KCONFIG_TARGET_COMMAND_FOR_menuconfig_ses=C:/ncs/SEGGER/html/configure_nordic_project_menuconfig.py
-- Using application from 'C:/ncs2/nrf/applications/asset_tracker'
Zephyr version: 2.1.0
-- Selected BOARD nrf9160_pca10090ns
-- Cache files will be written to: C:\Users\Thomas Aunvik\AppData\Local/.cache/zephyr
USING OUT OF TREE BOARD
-- Loading C:/ncs2/zephyr/boards/arm/nrf9160_pca10090/nrf9160_pca10090ns.dts as base
Devicetree configuration written to C:/ncs2/nrf/applications/asset_tracker/build/zephyr/include/generated/generated_dts_board.conf

C:/ncs2/nrf/applications/asset_tracker/prj.conf:22: warning: attempt to assign the value 'y' to the undefined symbol LTE_LINK_CONTROL

Parsing Kconfig tree in C:/ncs2/nrf/applications/asset_tracker/Kconfig
Loaded configuration 'C:/ncs2/zephyr/boards/arm/nrf9160_pca10090/nrf9160_pca10090ns_defconfig'
Merged configuration 'C:/ncs2/nrf/applications/asset_tracker/prj.conf'
C:/ncs2/nrf/applications/asset_tracker/prj.conf:23: warning: attempt to assign the value 'y' to the undefined symbol LTE_NETWORK_MODE_LTE_M_GPS

C:/ncs2/nrf/applications/asset_tracker/prj.conf:24: warning: attempt to assign the value 'n' to the undefined symbol LTE_AUTO_INIT_AND_CONNECT

C:/ncs2/nrf/applications/asset_tracker/prj.conf:25: warning: attempt to assign the value 'y' to the undefined symbol LTE_LINK_CONTROL_LOG_LEVEL_DBG

C:/ncs2/nrf/applications/asset_tracker/prj.conf:27: warning: attempt to assign the value 'n' to the undefined symbol LTE_NETWORK_MODE_NBIOT

C:/ncs2/nrf/applications/asset_tracker/prj.conf:28: warning: attempt to assign the value 'n' to the undefined symbol LTE_LEGACY_PCO_MODE

C:/ncs2/nrf/applications/asset_tracker/prj.conf:29: warning: attempt to assign the value '"00000110"' to the undefined symbol LTE_PSM_REQ_RPTAU

C:/ncs2/nrf/applications/asset_tracker/prj.conf:30: warning: attempt to assign the value '"00000000"' to the undefined symbol LTE_PSM_REQ_RAT

C:/ncs2/nrf/applications/asset_tracker/prj.conf:33: warning: attempt to assign the value 'y' to the undefined symbol MODEM_INFO

C:/ncs2/nrf/applications/asset_tracker/prj.conf:36: warning: attempt to assign the value 'y' to the undefined symbol BSD_LIBRARY

C:/ncs2/nrf/applications/asset_tracker/prj.conf:37: warning: attempt to assign the value 'n' to the undefined symbol BSD_LIBRARY_TRACE_ENABLED

C:/ncs2/nrf/applications/asset_tracker/prj.conf:40: warning: attempt to assign the value 'y' to the undefined symbol CLOUD_API

C:/ncs2/nrf/applications/asset_tracker/prj.conf:41: warning: attempt to assign the value 'y' to the undefined symbol NRF_CLOUD

C:/ncs2/nrf/applications/asset_tracker/prj.conf:42: warning: attempt to assign the value 'y' to the undefined symbol NRF_CLOUD_LOG_LEVEL_DBG

C:/ncs2/nrf/applications/asset_tracker/prj.conf:50: warning: attempt to assign the value 'y' to the undefined symbol NRF9160_GPS

C:/ncs2/nrf/applications/asset_tracker/prj.conf:51: warning: attempt to assign the value 'y' to the undefined symbol NRF9160_GPS_LOG_LEVEL_DBG

C:/ncs2/nrf/applications/asset_tracker/prj.conf:62: warning: attempt to assign the value 'y' to the undefined symbol DK_LIBRARY

C:/ncs2/nrf/applications/asset_tracker/prj.conf:63: warning: attempt to assign the value 'n' to the undefined symbol DK_LIBRARY_INVERT_LEDS

C:/ncs2/nrf/applications/asset_tracker/prj.conf:89: warning: attempt to assign the value 'y' to the undefined symbol AWS_FOTA

C:/ncs2/nrf/applications/asset_tracker/prj.conf:90: warning: attempt to assign the value 'y' to the undefined symbol AWS_FOTA_LOG_LEVEL_DBG

C:/ncs2/nrf/applications/asset_tracker/prj.conf:91: warning: attempt to assign the value 'y' to the undefined symbol AWS_JOBS_LOG_LEVEL_DBG

C:/ncs2/nrf/applications/asset_tracker/prj.conf:92: warning: attempt to assign the value '128' to the undefined symbol AWS_FOTA_VERSION_STRING_MAX_LEN

C:/ncs2/nrf/applications/asset_tracker/prj.conf:93: warning: attempt to assign the value 'y' to the undefined symbol DFU_TARGET

C:/ncs2/nrf/applications/asset_tracker/prj.conf:96: warning: attempt to assign the value 'y' to the undefined symbol DOWNLOAD_CLIENT

C:/ncs2/nrf/applications/asset_tracker/prj.conf:97: warning: attempt to assign the value '4096' to the undefined symbol DOWNLOAD_CLIENT_STACK_SIZE

Error: Aborting due to non-whitelisted Kconfig warning
'C:/ncs2/nrf/applications/asset_tracker/prj.conf:22: warning: attempt to assign the value 'y' to the
undefined symbol LTE_LINK_CONTROL'. Note: If this warning doesn't point to an actual problem, you
can add it to the whitelist at the top of C:/ncs2/zephyr/scripts/kconfig/kconfig.py.

CMake Error at C:/ncs2/zephyr/cmake/kconfig.cmake:227 (message):
 command failed with return code: 1
Call Stack (most recent call first):
 C:/ncs2/zephyr/cmake/app/boilerplate.cmake:567 (include)
 CMakeLists.txt:11 (include)


-- Configuring incomplete, errors occurred!
Project load failed
Reported error: solution load command failed (1)