VS Code Extension - west flash fails from missing python dependencies

RE: VS Code Extension - west flash fails from missing python dependencies

tschmitz — Mon, 29 Jul 2024 18:19:37 GMT

Had the same problem, but this worked for me in Ubuntu 22.04:

1. Open the toolchain manager, click on the dropdown arrow, and select "Generate environment script." Save the script to a location of your choice.

2. Open a terminal and source the environment script that you just generated (i.e source env.sh)

3. Find where the nordic toolchain is installed and navigate to it in the terminal (example path: ~/ncs/toolchains/2be090971e)

4. Run "./usr/local/bin/pip install pylink"

5. Open environment.json inside the toolchain directory, under the "LD_LIBRARY_PATH" key, add the following value to the list:
"opt/nanopb/generator-bin/"

After you add that value, your environment JSON file should look like this:

{
  "env_vars": [
    {
      "type": "relative_paths",
      "key": "PATH",
      "values": [
        "bin",
        "usr/bin",
        "usr/local/bin",
        "opt/bin",
        "opt/nanopb/generator-bin",
        "opt/zephyr-sdk/aarch64-zephyr-elf/bin",
        "opt/zephyr-sdk/x86_64-zephyr-elf/bin",
        "opt/zephyr-sdk/arm-zephyr-eabi/bin",
        "opt/zephyr-sdk/riscv64-zephyr-elf/bin"
      ],
      "existing_value_treatment": "prepend_to"
    },
    {
      "type": "relative_paths",
      "key": "LD_LIBRARY_PATH",
      "values": [
        "lib",
        "lib/x86_64-linux-gnu",
        "usr/local/lib",
        "opt/nanopb/generator-bin/"
      ],
      "existing_value_treatment": "prepend_to"
    },
    {
      "type": "relative_paths",
      "key": "GIT_EXEC_PATH",
      "values": [
        "usr/local/libexec/git-core"
      ],
      "existing_value_treatment": "overwrite"
    },
    {
      "type": "relative_paths",
      "key": "GIT_TEMPLATE_DIR",
      "values": [
        "usr/local/share/git-core/templates"
      ],
      "existing_value_treatment": "overwrite"
    },
    {
      "type": "relative_paths",
      "key": "PYTHONHOME",
      "values": [
        "usr/local"
      ],
      "existing_value_treatment": "overwrite"
    },
    {
      "type": "relative_paths",
      "key": "PYTHONPATH",
      "values": [
        "usr/local/lib/python3.9",
        "usr/local/lib/python3.9/site-packages"
      ],
      "existing_value_treatment": "overwrite"
    },
    {
      "type": "string",
      "key": "ZEPHYR_TOOLCHAIN_VARIANT",
      "value": "zephyr"
    },
    {
      "type": "relative_paths",
      "key": "ZEPHYR_SDK_INSTALL_DIR",
      "values": [
        "opt/zephyr-sdk"
      ],
      "existing_value_treatment": "overwrite"
    }
  ]
}

Reboot VS code and see if it is able to flash now. If not, make sure that you have JLink installed and that your device is plugged in.

I hope this helps!

RE: VS Code Extension - west flash fails from missing python dependencies

Rei Vilo — Wed, 09 Aug 2023 11:48:28 GMT

Yes, after a couple of iterations.

First, I performed a manual installation as suggested, but it didn't solve the issue.

Then I launched the automatic installation again, this time with SDK 2 4.1.

Everything works fine as expected now.

RE: VS Code Extension - west flash fails from missing python dependencies

Einar Thorsrud — Mon, 07 Aug 2023 10:39:11 GMT

Hi,

Did you resolve this? If not, can you check your PATH (echo $PATH)? It should use key tools (like python) from the toolchain manager, and a typical cause of issues if that is not the case (so something has modified the path).

RE: VS Code Extension - west flash fails from missing python dependencies

Rei Vilo — Thu, 27 Jul 2023 07:28:12 GMT

Thank you. I went through the manual procedure, to no avail.

Sadly, the error message is not very explicit.

Where should I look at?

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Wed, 26 Jul 2023 17:36:18 GMT

I just followed their guide.

developer.nordicsemi.com/.../installing.html

RE: VS Code Extension - west flash fails from missing python dependencies

Rei Vilo — Wed, 26 Jul 2023 16:47:40 GMT

Same problem here, with the same fatal error when completing fund_less1_exer2

Flashing build to 601004602
/bin/sh -c west flash -d /home/Nordic/Projects/fund_less1_exer2/build --skip-rebuild -i 601004602

-- west flash: using runner jlink
FATAL ERROR: one or more Python dependencies were missing; see the getting started guide for details on how to fix

The whole configuration was installed with the recommended procedure with Toolchain Manager 1.2.5

Configuration is

Debian 6.1.38-1 (2023-07-14) x86_64 GNU/Linux
VSC 1.80.1
nRF Connect SDK 2.4.0
Toolchain Manager 1.2.5
SEGGER J-Link Commander V7.88n

I have read you have managed to fix this issue. What part of the installation should be carried manually?

Thank you!

RE: VS Code Extension - west flash fails from missing python dependencies

Einar Thorsrud — Tue, 06 Jun 2023 07:51:17 GMT

Hi,

I am glad to hear you found a solution that works for you (with manual install). I have forwarded this thread to our team that works on the toolchain manager and will update here if they have any questions or suggestions.

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Sat, 03 Jun 2023 01:47:20 GMT

I was able to get it working by doing a manual installation. I suppose the original issue is solved for me, but installing through the toolchain manager still does not work. If you would like to investigate this further, I would be more than willing to help out.

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Fri, 02 Jun 2023 21:49:28 GMT

Yes, that prints immediately when I open the terminal from the toolchain manager. Re-installing everything did not fix it.

RE: VS Code Extension - west flash fails from missing python dependencies

Einar Thorsrud — Fri, 02 Jun 2023 13:14:46 GMT

Is that what you get immediately printed on the terminal when you open it from the toolchain manager? Can you try to remove and re-install SDK and toolchain 2.3.0 and see if that helps?

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Fri, 02 Jun 2023 02:09:11 GMT

Here is the full output from opening the terminal:

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Thu, 01 Jun 2023 23:49:53 GMT

The toolchain is selected.

Opening the terminal from the toolchain manager gives this error:

Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f7d1eee61c0 (most recent call first):
<no Python frame>

Building from this terminal seems to work.

RE: VS Code Extension - west flash fails from missing python dependencies

Einar Thorsrud — Fri, 26 May 2023 14:11:35 GMT

If you installed via the toolchain manager you should have everything. Have you selected the toolchain from the toolchain manager in VS Code (if it did not happen automatically)? You can do that here:

Also, does building from the command line work? If testing that, remember to open the command line from the toolchain manager (clicking the downwards error to the right of the "Open VS Code" button, and selecting "Open Terminal".

RE: VS Code Extension - west flash fails from missing python dependencies

brendansl — Fri, 26 May 2023 12:56:11 GMT

That's all the terminal output says and generating support information only says "Failure (code 1)" (along with the normal support info). Is there another log that you're referring to? I used the toolchain manager to install automatically.

RE: VS Code Extension - west flash fails from missing python dependencies

Einar Thorsrud — Fri, 26 May 2023 11:53:47 GMT

Hi,

What else to you see in the log? You should be able to see what exactly is missing. That said, there is support for Ubuntu 22.04 in the toolchain manager, and I would recommend using that as that way you get everything set up out of the box (see installing automatically for details).