Cannot flash using NCS 2.9 toolchain in VS Code

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Wed, 16 Apr 2025 07:26:13 GMT

Quick question. Have you tried with different toolchains? For example one version up or one above?

If you start a terminal window (not in VSCode) and do which west, what is the output?

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Tue, 15 Apr 2025 18:12:43 GMT

Any update, additional information, or estimate on the resolution of this issue?

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Thu, 27 Mar 2025 10:08:23 GMT

I'm sorry to say there is no update. I have asked the team again

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Wed, 26 Mar 2025 20:45:52 GMT

Any update on this issue?

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Mon, 17 Mar 2025 08:32:49 GMT

Thanks, I have forwarded the information

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Fri, 14 Mar 2025 18:08:20 GMT

In order to open the terminal and run west commands, I select the Launch Profile option next to the new terminal action and open an nRF Connect terminal page. At that point the terminal reports the environmental python version is 3.12 with west 1.2.0 installed. Using this terminal instance I can run the builld and flashing west commands. The build command works without issue, exactly as the VS Code action, however the flash command fails with the same ImportError as stated above.

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Tue, 11 Mar 2025 14:09:46 GMT

I got a question from R&D if you could provide some more information like video/step on how you open the terminal. As this issue is both for command line and VScode they would like to see how you open the shell env for CLI case first to run the west command.

Afterwards they wonder what happends if you remove west from python 3.8?

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Thu, 06 Mar 2025 09:58:28 GMT

Update:
What I got yesterday was that we have managed to reproduce the issue, but they did not have a workaround or root cause. They suspect there is some script call that uses default os python with something like

#!/usr/bin/pythonshebang) while PYTHONPATH is set to toolchain's libs which causes this error

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Fri, 28 Feb 2025 13:50:15 GMT

Thanks for the update, I will update as soon at I hear back from the developers

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Thu, 27 Feb 2025 19:31:00 GMT

Using the command line instead of VS Code does not change the result. Building the project is successful from both the command line as well as through VS Code, however both fail to flash the device with the failure occurring during the attempt to flash merged.hex.

ImportError: cannot import name 'text_encoding' from 'io' (unknown location)

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Wed, 26 Feb 2025 06:56:26 GMT

Thanks.

the followup is the following. If you build using the command line, do you see the same issue as when using vscode to build?

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Tue, 25 Feb 2025 15:35:21 GMT

nRF Connect for Desktop v5.1.0 official v1.5.3 Toolchain Manager

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Tue, 25 Feb 2025 08:50:17 GMT

Thanks, I just got a question forwarded. When toolchain manager" is mentioned is it the nRF Connect application or the nrfUtil CLI?

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Tue, 25 Feb 2025 08:25:55 GMT

Thank you for the log. I have asked internally and will update when I hear back from them

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Mon, 24 Feb 2025 21:59:22 GMT

Hi Runar,

Below is the contents of the generated support file. Command line tool, udevrules, and nrfutil should all be installed.

{
  "platform": {
    "os": "linux",
    "osVersion": "#99~20.04.1-Ubuntu SMP Thu Nov 2 15:16:47 UTC 2023",
    "osKernel": "5.15.0-89-generic",
    "vscode": "1.97.2",
    "electron": "32.2.7",
    "node": "v20.18.1",
    "name": "Ubuntu",
    "id": "ubuntu",
    "version": "20.04.6 LTS (Focal Fossa)",
    "versionId": "20.04"
  },
  "system": {
    "date": "2025-02-24T16:31:59.397Z",
    "vscodeRoot": "/usr/share/code/resources/app",
    "nrfConnectForDesktopInstalled": "unknown",
    "vscodeUptime": "01:21:09",
    "osUptime": "01:22:41",
    "cpu": "11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz"
  },
  "workspace": {
    "name": "peripheral_lbs_1",
    "workspaceFile": null,
    "folders": [
      "/home/kyle/Desktop/peripheral_lbs_1"
    ]
  },
  "sdks": [
    {
      "version": "v2.9.0",
      "path": "/home/kyle/ncs/v2.9.0"
    },
    {
      "version": "v2.7.0",
      "path": "/home/kyle/ncs/v2.7.0"
    }
  ],
  "activeBuild": "/home/kyle/Desktop/peripheral_lbs_1/build_3",
  "apps": [
    {
      "workspace": "/home/kyle/Desktop/peripheral_lbs_1",
      "uri": "/home/kyle/Desktop/peripheral_lbs_1",
      "buildConfigurations": [
        {
          "id": "/home/kyle/Desktop/peripheral_lbs_1/build_3",
          "name": "build_3",
          "boardId": "nrf54l15dk/nrf54l15/cpuapp",
          "type": "Sysbuild",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "/home/kyle/ncs/v2.9.0",
          "toolchain": "nRF Connect SDK Toolchain v2.9.0"
        }
      ]
    }
  ],
  "toolchains": [
    {
      "version": "2.9.0",
      "path": "/home/kyle/ncs/toolchains/b77d8c1312"
    },
    {
      "version": "2.7.0",
      "path": "/home/kyle/ncs/toolchains/e9dba88316"
    }
  ],
  "connectedDevices": [
    {
      "serialNumber": "001057761682"
    }
  ],
  "tools": {
    "/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc": "0.17.0",
    "/opt/SEGGER/JLink/JLinkExe": "7.88c",
    "/usr/local/bin/nrfjprog": "10.21.0",
    "/usr/local/bin/nrfutil": null,
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin/cmake": "3.21.0",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin/west": "1.2.0",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin/python3": "3.12.4",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin/ninja": "1.10.2",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/bin/gperf": "3.1",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/bin/dtc": "1.5.0",
    "/home/kyle/ncs/toolchains/b77d8c1312/opt/bin/gn": "2132",
    "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin/git": "2.37.3",
    "arm-gdbPath": "/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gdb",
    "riscv-gdbPath": "/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/riscv64-zephyr-elf/bin/riscv64-zephyr-elf-gdb"
  },
  "nrfutil": {
    "nrfutil-device": {
      "version": "2.7.9",
      "binPath": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-connect-2025.1.127-linux-x64/platform/nrfutil/bin/nrfutil-device",
      "jlinkInfo": {
        "description": "This version of SEGGER J-Link is different from the J-Link version that was used to test nrfutil device commands",
        "expectedVersion": {
          "version": "JLink_V7.94i",
          "versionFormat": "string"
        },
        "name": "JlinkARM",
        "version": "JLink_V7.88c",
        "versionFormat": "string"
      }
    },
    "nrfutil-toolchain-manager": {
      "version": "0.14.4",
      "binPath": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-connect-2025.1.127-linux-x64/platform/nrfutil/bin/nrfutil-toolchain-manager"
    }
  },
  "environment": {
    "westEnv": {
      "GIT_EXEC_PATH": "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/libexec/git-core",
      "HOME": "/home/kyle",
      "PATH": "/home/kyle/ncs/toolchains/b77d8c1312/usr/bin:/home/kyle/ncs/toolchains/b77d8c1312/usr/bin:/home/kyle/ncs/toolchains/b77d8c1312/usr/local/bin:/home/kyle/ncs/toolchains/b77d8c1312/opt/bin:/home/kyle/ncs/toolchains/b77d8c1312/opt/nanopb/generator-bin:/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/arm-zephyr-eabi/bin:/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/riscv64-zephyr-elf/bin:/home/kyle/.local/bin:/home/kyle/anaconda3/bin:/home/kyle/anaconda3/condabin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/home/kyle/.local/bin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/home/kyle/.local/bin:/home/kyle/anaconda3/bin:/home/kyle/anaconda3/condabin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/home/kyle/.local/bin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin",
      "ZEPHYR_BASE": "/home/kyle/ncs/v2.7.0/zephyr",
      "ZEPHYR_TOOLCHAIN_VARIANT": "zephyr",
      "ZEPHYR_SDK_INSTALL_DIR": "/home/kyle/ncs/toolchains/b77d8c1312/opt/zephyr-sdk",
      "PYTHONPATH": "/home/kyle/ncs/toolchains/b77d8c1312/usr/local/lib/python3.12:/home/kyle/ncs/toolchains/b77d8c1312/usr/local/lib/python3.12/site-packages",
      "USER": "kyle"
    },
    "inherited": {
      "ELECTRON_RUN_AS_NODE": "1",
      "HOME": "/home/kyle",
      "PATH": "/home/kyle/.local/bin:/home/kyle/anaconda3/bin:/home/kyle/anaconda3/condabin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/home/kyle/.local/bin:/home/kyle/Desktop/Workspace/Repos/DevOps/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin",
      "USER": "kyle"
    }
  },
  "terminal": {
    "defaultProfile": null
  },
  "config": {
    "nordic-semiconductor.nrf-connect": {
      "topdir": "",
      "toolchain": {
        "path": ""
      },
      "ozonePath": "",
      "applications": [],
      "applicationOptions": {},
      "kconfig": {
        "interface": "kconfig"
      },
      "west": {
        "env": {
          "$base": "terminal"
        }
      },
      "boardRoots": [],
      "taskBindings": {},
      "buildTerminal": {
        "condensedProgress": true
      },
      "debugging": {
        "flash": true,
        "bindings": {},
        "justMyCode": false
      },
      "activeAppFollowActiveEditor": true,
      "flash": {
        "softreset": false,
        "erase": false,
        "recover": false
      },
      "enableTelemetry": false,
      "thirdpartyIntegration": {},
      "toolchainManager": {
        "indexURL": null,
        "installDirectory": null
      },
      "nrfutil": {
        "home": null
      },
      "defaultOpenAction": "ask",
      "terminalProfile": {
        "shell": null
      }
    },
    "nordic-semiconductor.nrf-terminal": {
      "terminalMode": "character"
    }
  },
  "extensions": {
    "internal": {
      "nordic-semiconductor.nrf-connect": {
        "version": "2025.1.127",
        "path": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-connect-2025.1.127-linux-x64",
        "isActive": true
      },
      "nordic-semiconductor.nrf-terminal": {
        "version": "2024.9.14",
        "path": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-terminal-2024.9.14",
        "isActive": true
      },
      "nordic-semiconductor.nrf-devicetree": {
        "version": "2024.12.15",
        "path": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-devicetree-2024.12.15",
        "isActive": true
      },
      "nordic-semiconductor.nrf-kconfig": {
        "version": "2024.12.13",
        "path": "/home/kyle/.vscode/extensions/nordic-semiconductor.nrf-kconfig-2024.12.13",
        "isActive": true
      }
    },
    "external": {
      "marus25.cortex-debug": null,
      "ms-vscode.cpptools": "1.23.6",
      "ms-vscode.js-debug": "1.97.1",
      "ms-vscode.js-debug-companion": "1.1.3",
      "ms-vscode.vscode-js-profile-table": "1.0.10",
      "GitHub.copilot": "1.272.0",
      "GitHub.copilot-chat": "0.24.1",
      "ms-python.debugpy": "2025.0.1",
      "ms-python.python": "2025.0.0",
      "ms-python.vscode-pylance": "2025.2.1",
      "ms-vscode.makefile-tools": "0.11.13",
      "trond-snekvik.gnu-mapfiles": "1.1.0"
    }
  }
}

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Mon, 24 Feb 2025 08:31:08 GMT

Sorry Kyle, I was a bit unclear in my instruction. There is a button to generate support information in the NCS extension.

I can't really see any reason why this should fail for you. But just to be sure. You have installed Command line tool, udevrules and nrfutil?

Does it work to flash from the command line?

Regards

Runar

RE: Cannot flash using NCS 2.9 toolchain in VS Code

kcr11536 — Fri, 21 Feb 2025 19:29:53 GMT

I believe this is the info you were asking for. If there is anything else that would be helpful, just let me know.

RE: Cannot flash using NCS 2.9 toolchain in VS Code

runsiv — Thu, 20 Feb 2025 22:23:58 GMT

Could you generate the support information in vscode also? I will investigate regarding the issue

Regards

Runar