Some SDK are missing when creating a build configuration

[GilDev]

Hello,

I have recently been working on other Zephyr projects that use non-Nordic MCUs. I installed raw Zephyr in my documents folder (“C:\Users\gilles.devillers.SECTRONIC\zephyr”). Now, when I’m trying to build my older nRF projects, it didn’t work, showing weird error messages about colliding Python versions. I deleted my build configurations, but now I can’t create a new one: the SDK list only shows Zephyr, but not the installed ncs ones anymore:

But when exporting the debug information from the VSCode extension, the SDK are all listed:

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{
  "platform": {
    "os": "win32",
    "osVersion": "Windows 11 Pro",
    "osKernel": "10.0.26100",
    "vscode": "1.98.1",
    "electron": "34.2.0",
    "node": "v20.18.2"
  },
  "system": {
    "date": "2025-03-27T16:01:24.933Z",
    "vscodeRoot": "c:\\Program Files\\Microsoft VS Code\\resources\\app",
    "nrfConnectForDesktopInstalled": true,
    "vscodeUptime": "80:07:06",
    "osUptime": "80:10:57",
    "cpu": "11th Gen Intel(R) Core(TM) i5-11400H @ 2.70GHz"
  },
  "workspace": {
    "name": "Untitled (Workspace)",
    "workspaceFile": "1714068093748",
    "folders": [
      "c:\\Users\\gilles.devillers.SECTRONIC\\aerobox",
      "c:\\Users\\gilles.devillers.SECTRONIC\\https_client_new",
      "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new",
      "c:\\Users\\gilles.devillers.SECTRONIC\\lte_ble_gateway",
      "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral",
      "c:\\Users\\gilles.devillers.SECTRONIC\\aws_iot",
      "c:\\Users\\gilles.devillers.SECTRONIC\\at_client"
    ]
  },
  "sdks": [
    {
      "version": "v2.9.0",
      "path": "c:\\ncs\\v2.9.0"
    },
    {
      "version": "v2.7.0",
      "path": "c:\\ncs\\v2.7.0_new"
    },
    {
      "version": "v2.6.1",
      "path": "c:\\ncs\\v2.6.1"
    },
    {
      "version": "v2.5.99-dev1",
      "path": "c:\\ncs\\v2.5.99-dev1"
    },
    {
      "version": "v2.5.2",
      "path": "c:\\ncs\\v2.5.2"
    },
    {
      "version": "v2.5.1",
      "path": "c:\\ncs\\v2.5.1"
    },
    {
      "version": "v2.5.0",
      "path": "c:\\ncs\\v2.5.0"
    },
    {
      "version": "v4.1.99",
      "path": "c:\\Users\\gilles.devillers.SECTRONIC"
    },
    {
      "version": "v3.7.0-rc2",
      "path": "c:\\Users\\gilles.devillers.SECTRONIC\\zephyrproject"
    },
    {
      "version": "v3.6.99",
      "path": "c:\\ncs\\v2.7.0"
    }
  ],
  "activeBuild": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral\\build_aerobox\\mcuboot",
  "apps": [
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\aerobox",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\aerobox",
      "buildConfigurations": []
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\at_client",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\at_client",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\at_client\\build",
          "name": "build",
          "boardId": "[email protected]/nrf9160/ns",
          "type": "Sysbuild",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.9.0",
          "toolchain": "nRF Connect SDK Toolchain v2.9.0"
        }
      ]
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\aws_iot",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\aws_iot",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\aws_iot\\build",
          "name": "build",
          "boardId": "[email protected]/nrf9160/ns",
          "type": "Sysbuild",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.9.0",
          "toolchain": "nRF Connect SDK Toolchain v2.9.0"
        }
      ]
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new\\build",
          "name": "build",
          "boardId": "nrf9160dk_nrf52840",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new\\build_aerobox",
          "name": "build_aerobox",
          "boardId": "aerobox_nrf52",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new\\build_aerobox_debug",
          "name": "build_aerobox_debug",
          "boardId": "aerobox_nrf52",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\hci_lpuart_new\\build_debug",
          "name": "build_debug",
          "boardId": "nrf9160dk_nrf52840",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        }
      ]
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\https_client_new",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\https_client_new",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\https_client_new\\build",
          "name": "build",
          "boardId": "nrf9160dk_nrf9160_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\https_client_new\\build_mbedtls",
          "name": "build_mbedtls",
          "boardId": "nrf9160dk_nrf9160_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        }
      ]
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\lte_ble_gateway",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\lte_ble_gateway",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\lte_ble_gateway\\build",
          "name": "build",
          "boardId": "nrf9160dk_nrf9160_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        }
      ]
    },
    {
      "workspace": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral",
      "uri": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral",
      "buildConfigurations": [
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral\\build",
          "name": "build",
          "boardId": "nrf9160dk_nrf9160_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral\\build_aerobox",
          "name": "build_aerobox",
          "boardId": "aerobox_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral\\build_aerobox_debug",
          "name": "build_aerobox_debug",
          "boardId": "aerobox_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        },
        {
          "id": "c:\\Users\\gilles.devillers.SECTRONIC\\peripheral\\build_debug",
          "name": "build_debug",
          "boardId": "nrf9160dk_nrf9160_ns",
          "type": "Zephyr",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "c:\\ncs\\v2.6.1",
          "toolchain": "nRF Connect SDK Toolchain v2.6.1"
        }
      ]
    }
  ],
  "toolchains": [
    {
      "version": "2.9.0",
      "path": "c:\\ncs\\toolchains\\b620d30767"
    },
    {
      "version": "2.7.0",
      "path": "c:\\ncs\\toolchains\\ce3b5ff664"
    },
    {
      "version": "2.6.1",
      "path": "c:\\ncs\\toolchains\\cf2149caf2"
    },
    {
      "version": "2.5.2",
      "path": "c:\\ncs\\toolchains\\c57af46cb7"
    },
    {
      "version": "2.5.1",
      "path": "c:\\ncs\\toolchains\\c57af46cb7"
    },
    {
      "version": "2.5.0",
      "path": "c:\\ncs\\toolchains\\c57af46cb7"
    },
    {
      "version": "0.16.5",
      "path": "c:\\Users\\gilles.devillers.SECTRONIC\\zephyr-sdk-0.16.5"
    }
  ],
  "connectedDevices": [],
  "tools": {
    "C:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin\\arm-zephyr-eabi-gcc.exe": "0.17.0",
    "C:\\Program Files\\SEGGER\\JLink_V794i\\JLink.exe": "7.94i",
    "C:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\nrfjprog.exe": "10.23.2",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\Scripts\\nrfutil.exe": "7.12.0",
    "C:\\ncs\\toolchains\\b620d30767\\cmake": "3.21.0",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\Scripts\\west.exe": "1.2.0",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\python.exe": "3.12.4",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\ninja.exe": "1.10.2",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\gperf.exe": "3.1",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\dtc.exe": "1.4.7",
    "C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\gn.exe": "2202",
    "C:\\ncs\\toolchains\\b620d30767\\mingw64\\bin\\git.exe": "2.37.3.windows.1",
    "arm-gdbPath": "c:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin\\arm-zephyr-eabi-gdb.exe",
    "riscv-gdbPath": "C:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk\\riscv64-zephyr-elf\\bin\\riscv64-zephyr-elf-gdb.exe"
  },
  "nrfutil": {
    "nrfutil-device": {
      "version": "2.7.9",
      "binPath": "c:\\Users\\gilles.devillers.SECTRONIC\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.1.127-win32-x64\\platform\\nrfutil\\bin\\nrfutil-device",
      "jlinkInfo": {
        "name": "JlinkARM",
        "version": "JLink_V7.94i",
        "versionFormat": "string"
      }
    },
    "nrfutil-toolchain-manager": {
      "version": "0.14.4",
      "binPath": "c:\\Users\\gilles.devillers.SECTRONIC\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.1.127-win32-x64\\platform\\nrfutil\\bin\\nrfutil-toolchain-manager"
    }
  },
  "environment": {
    "westEnv": {
      "HOME": "C:\\Users\\gilles.devillers.SECTRONIC",
      "HOMEDRIVE": "C:",
      "HOMEPATH": "\\Users\\gilles.devillers.SECTRONIC",
      "PATH": "C:\\ncs\\toolchains\\b620d30767;C:\\ncs\\toolchains\\b620d30767\\mingw64\\bin;C:\\ncs\\toolchains\\b620d30767\\bin;C:\\ncs\\toolchains\\b620d30767\\opt\\bin;C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\Scripts;C:\\ncs\\toolchains\\b620d30767\\opt\\nanopb\\generator-bin;C:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin;C:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk\\riscv64-zephyr-elf\\bin;c:\\Users\\gilles.devillers.SECTRONIC\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.1.127-win32-x64\\platform\\nrfutil\\lib\\nrfutil-toolchain-manager;C:\\Program Files\\Common Files\\Oracle\\Java\\javapath;C:\\Program Files (x86)\\VMware\\VMware Player\\bin\\;C:\\Program Files\\Zulu\\zulu-21\\bin\\;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\Program Files\\PuTTY\\;C:\\Program Files (x86)\\NetSarang\\Xshell 7\\;C:\\Program Files (x86)\\NetSarang\\Xftp 7\\;C:\\Program Files\\Amazon\\AWSCLIV2\\;C:\\Program Files\\dotnet\\;C:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\;C:\\Program Files\\Microsoft VS Code\\bin;C:\\Program Files (x86)\\GitExtensions\\;C:\\ProgramData\\chocolatey\\bin;C:\\Program Files\\CMake\\bin;C:\\Program Files\\Git\\cmd;C:\\Program Files (x86)\\MBPoll;C:\\Program Files\\Docker\\Docker\\resources\\bin;C:\\Program Files\\usbipd-win\\;C:\\Program Files\\Meld\\;C:\\Strawberry\\c\\bin;C:\\Strawberry\\perl\\site\\bin;C:\\Strawberry\\perl\\bin;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python311\\Scripts;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Microsoft\\WindowsApps\\;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Roaming\\Python\\Python38\\Scripts;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Programs\\Ollama;C:\\Program Files\\OpenOCD\\bin;C:\\Program Files\\Cppcheck;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\GitHubDesktop\\bin;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Microsoft\\WinGet\\Packages\\schollz.croc_Microsoft.Winget.Source_8wekyb3d8bbwe;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python310\\Scripts;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Programs\\Python\\Python313\\;C:\\Users\\gilles.devillers.SECTRONIC\\AppData\\Local\\Programs\\Python\\Python313\\Scripts\\;",
      "ZEPHYR_BASE": "c:\\ncs\\v2.9.0\\zephyr",
      "ZEPHYR_TOOLCHAIN_VARIANT": "zephyr",
      "ZEPHYR_SDK_INSTALL_DIR": "C:\\ncs\\toolchains\\b620d30767\\opt\\zephyr-sdk",
      "PYTHONPATH": "C:\\ncs\\toolchains\\b620d30767\\opt\\bin;C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\Lib;C:\\ncs\\toolchains\\b620d30767\\opt\\bin\\Lib\\site-packages"
    },
    "inherited": {
      "HOME": "C:\\Users\\gilles.devillers.SECTRONIC",
      "HOMEDRIVE": "C:",
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How can I repair my development environment so that the VSCode extension properly shows all my installed SDKs?

Thanks.

[GilDev]

I’m sorry but this forum’s editor is completely broken: I have been trying to reply for 30 minutes and I only got bugs and “An error occurred. Please try again or contact your administrator.” errors, whatever browser I use. Here’s my complete message: https://pastebin.com/auWw61vC

Is it please possible to get a more direct contact, maybe via email?

Thanks, best regards.

[GilDev]

After numerous attempts, it seems that deleting everything (including that snarkly .west directory) and reinstalling the SDK (while removing the more recent toolchain) helped. I successfully managed to build my project again. Not putting projects at the same root level, as dejans  said, is mandatory. Thanks for the help!