Best development workflow for newbie

[wickywaka]

I want to start using the workspace application workflow for my application. I thought this one would allow encapsulate the dependencies and application code in one repository and it would easier for me start writing code on a new machine as soon as possible or would be easier for me to get someone else onboard. The Zephyr docs (although a lot) is sometimes confusing for new comers and feel incomplete at places.

What am I missing here? I am using the example-application as a starting point. Below is what I did on my Ubuntu 22.04:

sudo apt install --no-install-recommends git cmake ninja-build gperf ccache dfu-util device-tree-compiler wget python3-dev python3-pip python3-setuptools python3-tk python3-wheel xz-utils file make gcc gcc-multilib g++-multilib libsdl2-dev libmagic1

wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.16.8/zephyr-sdk-0.16.8_linux-x86_64.tar.xz
tar xvf zephyr-sdk-0.16.8_linux-x86_64.tar.xz 
cd zephyr-sdk-0.16.8/
./setup.sh 

cd ~
sudo apt install python3-venv
python3 -m venv ~/my-zephyr-workspace/.venv
source ~/my-zephyr-workspace/.venv/bin/activate
pip install west
cd ~/my-zephyr-workspace
west init -m https://github.com/zephyrproject-rtos/example-application
west udpate
pip install -r zephyr/scripts/requirements.txt 
cd example-application/
west build -b nucleo_f302r8

I see the following error:

~/my-zephyr-workspace/example-application$ west build -b nucleo_f302r8
-- west build: generating a build system
CMake Warning (dev) in CMakeLists.txt:
  No project() command is present.  The top-level CMakeLists.txt file must
  contain a literal, direct call to the project() command.  Add a line of
  code such as

    project(ProjectName)

  near the top of the file, but after cmake_minimum_required().

  CMake is pretending there is a "project(Project)" command on the first
  line.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error at CMakeLists.txt:10 (zephyr_syscall_include_directories):
  Unknown CMake command "zephyr_syscall_include_directories".


CMake Warning (dev) in CMakeLists.txt:
  No cmake_minimum_required command is present.  A line of code such as

    cmake_minimum_required(VERSION 3.22)

  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!
See also "/home/user/my-zephyr-workspace/example-application/build/CMakeFiles/CMakeOutput.log".
FATAL ERROR: command exited with status 1: /usr/bin/cmake -DWEST_PYTHON=/home/user/my-zephyr-workspace/.venv/bin/python3 -B/home/user/my-zephyr-workspace/example-application/build -GNinja -DBOARD=nucleo_f302r8 -S/home/user/my-zephyr-workspace/example-application

[DerekSnell]

Hi @wickywaka ,
I see your west build command is not pointing to the correct source folder for the application. This is why the Cmake error complains of the missing project() command, because it is starting with the wrong CMakeLists.txt file. Notice in the example-application steps, the west build command includes the app folder as the source folder for the build. Try changing your build command to:

west build -b nucleo_f302r8 app

Best regards

[wickywaka]

Thanks for the help. I was doing it with the app but it looks it just somehow popped out of my head. It compiles now. Thanks again.