Building Auracast Broadcast example code

RE: Building Auracast Broadcast example code

SwRa — Tue, 05 Aug 2025 12:45:45 GMT

Hi Andrew,

I think the error is due to the Python environment not being set up correctly for the nRF Connect SDK toolchain. The Python environment that runs west must also have the west Python package installed and accessible. If the Python environment is not set up correctly, or if the wrong Python interpreter is used, you will see this error—even if west.exe is present Refer: West troubleshooting.

The nRF Connect SDK toolchain (installed via Toolchain Manager) sets up a specific Python environment with all required packages, including west. If you try to run west or buildprog.py outside of this environment, or with a different Python interpreter, you may encounter this error. See the discusson here: https://devzone.nordicsemi.com/f/nordic-q-a/113755/building-nrf5340-audio-dk-from-the-command-line?ReplyFilter=Answers&ReplySortBy=Answers&ReplySortOrder=Descending

The recommended way to ensure the correct environment is to use the nRF Connect Terminal in VS Code, or to start a terminal using the "Open Terminal" option from the Toolchain Manager or nRF Connect for VS Code extension. This ensures all environment variables and paths are set up correctly for the SDK and toolchain Exercise 2 – Build and flash your first nRF Connect SDK application.

Regards,

Swathy

RE: Building Auracast Broadcast example code

astorm — Fri, 25 Jul 2025 15:34:54 GMT

hello Sathy,

I can understand why the python buildprog.py command is failing without the -t argument but I copied the line from Building and running nRF5340 Audio applications instructions.

Even with the -t argument the error is:

West tool is installed at "C:\ncs\toolchains\0b393f9e1b\opt\bin\Scripts" on my pc and this directory has already been entered as an environment variable so Windows can in find it.

Even if I "cd" to the "scripts" directory and run it west from there just to check it can be found at least, this error results:

RE: Building Auracast Broadcast example code

SwRa — Fri, 25 Jul 2025 11:44:37 GMT

Hi Andrew,

The nRF5340 Audio application does not support building and programming using the nRF Connect for VS Code extension. You must use either the provided Python script (`buildprog.py`) or the command line with `west` to build and program the application.
See the section highlighted as important here: Building and running nRF5340 Audio applications

[quote user=""]

Python Script failure:

[/quote]

As of NCS v3.0.0 and later, the 'buildprog.py' script requires the '-t' or '--transport' argument to specify either 'unicast' or 'broadcast'.
For example, to build the broadcast gateway (source), use:
python buildprog.py -c app -b debug -d gateway -t broadcast

To build headsets:
python buildprog.py -c app -b debug -d headset -t broadcast

If you omit '-t', the script will fail as you observed. See here: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/applications/nrf5340_audio/doc/building.html#script_parameters_for_building

Also note that if you are using an older SDK (e.g., v2.9.1), the script syntax is different and does not accept '-t'. Make sure your documentation matches your SDK version: (8) Nordic DevZone

[quote user=""]

Command line failure:

[/quote]

This error means the `west` tool is not installed or not available in your environment. Make sure you have installed the nRF Connect SDK toolchain using the Toolchain Manager, which sets up 'west' and all dependencies. Make sure that all the installation steps are done correctly: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/installation/install_ncs.html

Regards,

Swathy