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Can you try this instead:
~/zephyrproject/zephyr$ west -v build -b nrf52840_pca10059 samples/basic/blinky
Then you can find the build output files in the build/ folder.
The syntax of the west build command is well documented both in the tool itself and in the documentation here:
From: devel@... <devel@...>
On Behalf Of via Lists.Zephyrproject.Org
Sent: 23 July 2019 08:58
To: Thea Aldrich <aldrich.thea@...>
Subject: Fw: [Zephyr-devel] Development in Zephyr
Dear Mr Aldrich,
Hope you will be fine and in best of health. I have gone through the links which you have referred me. I found them very very useful. Thank you for your kind support. Now i have purchased the NRF52840 Dongles. In
reference to our previous discussion, it is requested to kindly help me through the examples of LED Blink and Mesh Demo. During LED Blink i am getting different sort of errors. Following are lines.
muhammad@muhammad-Asus:~/zephyrproject/zephyr$ west -v build -b nrf52840_pca10059 --build-dir path/to/build2/directory
ZEPHYR_BASE=/home/muhammad/zephyrproject/zephyr (origin: configfile)
args: Namespace(board='nrf52840_pca10059', build_dir='path/to/build2/directory', cmake=False, command='build', force=False, help=None, source_dir=None, target=None, verbose=1, version=False, zephyr_base=None) remainder: 
source_dir: None cmake_opts: None
source directory: /home/muhammad/zephyrproject/zephyr
build directory: /home/muhammad/zephyrproject/zephyr/path/to/build2/directory
CMake Error at CMakeLists.txt:13 (message):
A user error has occured.
cmake was invoked with '/home/muhammad/zephyrproject/zephyr' specified as the
but it must be invoked with an application source directory,
such as '/home/muhammad/zephyrproject/zephyr/samples/hello_world'.
CMake Warning (dev) in CMakeLists.txt:
No cmake_minimum_required command is present. A line of code such as
should be added at the top of the file. The version specified may be lower
if you wish to support older CMake versions for this project. For more
information run "cmake --help-policy CMP0000".
This warning is for project developers. Use -Wno-dev to suppress it.
-- Configuring incomplete, errors occurred!
ERROR: command exited with status 1: /home/muhammad/.local/bin/cmake -B/home/muhammad/zephyrproject/zephyr/path/to/build2/directory -H/home/muhammad/zephyrproject/zephyr -GNinja -DBOARD=nrf52840_pca10059
Traceback (most recent call last):
File "/home/muhammad/zephyrproject/.west/west/src/west/main.py", line 580, in main
File "/home/muhammad/zephyrproject/.west/west/src/west/main.py", line 332, in ext_command_handler
File "/home/muhammad/zephyrproject/.west/west/src/west/commands/command.py", line 90, in run
File "/home/muhammad/zephyrproject/zephyr/scripts/west_commands/build.py", line 153, in do_run
File "/home/muhammad/zephyrproject/zephyr/scripts/west_commands/build.py", line 317, in _run_cmake
File "/home/muhammad/zephyrproject/.west/west/src/west/cmake.py", line 35, in run_cmake
File "/usr/lib/python3.6/subprocess.py", line 311, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/home/muhammad/.local/bin/cmake', '-B/home/muhammad/zephyrproject/zephyr/path/to/build2/directory', '-H/home/muhammad/zephyrproject/zephyr', '-GNinja', '-DBOARD=nrf52840_pca10059']' returned non-zero exit status 1
Thank you for your help. I will be grateful if you can help me out in these sample demo.
Mr. Aldrich thank you for your email. I am really thank full to you.
a) Regarding "Slack Channel" i did not know about this before. Now i will definitely join it.
b) In reference to "Bluetooth Section of the Documentation Guide" i did not go through all these links. I will follow these to get more know how. I will get back to you after studying these documents.
Thank you once again.
From: Thea Aldrich <aldrich.thea@...>
Sent: Tuesday, June 25, 2019 4:13 AM
To: Muhammad Muh; Thea Aldrich
Subject: Re: [Zephyr-devel] Development in Zephyr
Welcome to the Zephyr Project! We're so happy to hear you are exploring ZephyrOS and Bluetooth Mesh. I'm happy to help you through the process of getting started with your first application. Have
you joined the
Slack channel? Its a great place to ask questions and get to know the community better. A number of our experts in Bluetooth Mesh are on daily. Everyone is always happy to help.
If those guides do not answer your questions or if you already went through the guides and still have questions, please feel free to reach out to me at any time. I am always happy to help where
Zephyr Project Developer Advocate
Hi.....I found this email address from Zephyr Projects. Basically i am totally new in the area of development. I want to start development using
Zephyr. I have already installed Zephyr by following the instruction given in the website. Also, ran the hello world program. Now i want to take help from you people as how i should go on and develop the application like given in your Zephyr SAMPLES. I am
confused from where i start my programming. For example talking of Bluetooth Mesh Sample. You have one sample program. First of all how can i see the output of Mesh Demo Program. Moreover, from where i start to add on features and run with some hardware board
as given in the list on zephyr website. I will be thank full if i can get help to start my programming in Zephyr.