RUI Online Compiler Error for RAK4600

Hi,

I uploaded my project to the online compiler (build.rakwireless.com) for the 4600 and this happened, looks like it is a problem on the RAK Wireless side?

Advice welcome if it’s something I have done wrong.

Thanks
John

nordic/Makefile_nRF:550: Cannot find source file: …/…/RUI/Source/nordic/app/at.c
mkdir _build
cd _build && mkdir nrf52_xxaa
Compiling file: system_nrf52.c
Assembling file: gcc_startup_nrf52.S
Compiling file: nrf_log_frontend.c
Compiling file: nrf_log_backend_rtt.c
Compiling file: nrf_log_backend_uart.c
Compiling file: nrf_log_backend_serial.c
Compiling file: nrf_log_str_formatter.c
Compiling file: nrf_log_default_backends.c
Compiling file: nrf_memobj.c
Compiling file: pm_mutex.c
Compiling file: ble_dfu.c
Compiling file: ble_dfu_unbonded.c
Compiling file: nrf_dfu_svci.c
Compiling file: nrf_pwr_mgmt.c
Compiling file: rui_inner_main.c
Compiling file: nrfx_uart.c
Compiling file: nrfx_uarte.c
Compiling file: nrfx_clock.c
Compiling file: nrfx_twim.c
…/…/RUI/Source/nordic/rui_inner_main.c:82:10: fatal error: at.h: No such file or directory
#include “at.h”
^~~~~~
compilation terminated.
…/…/components/toolchain/gcc/Makefile.common:272: recipe for target ‘_build/nrf52_xxaa/rui_inner_main.c.o’ failed
make: *** [_build/nrf52_xxaa/rui_inner_main.c.o] Error 1
make: *** Waiting for unfinished jobs…