Bluetooth Low Energy Fundamentals : L4 Ex 3 : Build Fails with "error: NRFX_UARTE0 ..."

On lesson https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-4-bluetooth-le-data-exchange/topic/blefund-lesson-4-exercise-3/ , When trying to build it gives the error:

error: NRFX_UARTE0 (defined at drivers/serial/Kconfig.nrfx_uart_instance:39) is assigned in a
configuration file, but is not directly user-configurable (has no prompt). It gets its value
indirectly from other symbols. See
docs.zephyrproject.org/.../kconfig.html and/or look up NRFX_UARTE0 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.

In order to fix this, the line "CONFIG_NRFX_UARTE0=y" needs to be removed from l4/l4_e3/boards/nrf54l15dk_nrf54l15_cpuapp_ns.conf and l4/l4_e3/prj.conf.  This is fixed in the l4/l4_e3_sol/, but not in the regular l4/l4_e3 lesson directory.

(I am using v3.2.0-v.3.0.0 and the nRF54L15-DK board).

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