[Bug Report]: QEMU Doesn't Launch: "Cannot read property 'fsPath' of undefined" (VSC-853)

Describe the bug The QEMU feature does not launch.

I click the [ESP-IDF QEMU] link on the activity bar. It creates merged_qemu.bin, and then prompts me to select Start QEMU. Immediately a status box appears “Cannot read property ‘fsPath’ of undefined”.

To Reproduce I am following the QEMU steps here: https://github.com/espressif/vscode-esp-idf-extension/blob/master/docs/QEMU.md

I created the Hello World example using the ESP-IDF: Show Examples Projects in VSCode v1.65 on Windows 11. The I opened the container using VSCode’s dev container support. It opens and builds the container.

(Side note: The first thing that VSCode complains about the “ESP-IDF” configuration in c_cpp_properties.json has a bad “compilerPath” because it is still referencing the windows path. I can fix this manually but it would be nice if this was taken care of automatically somehow. Obviously if I go back to developing without the container in Windows the path is again invalid.)

When I run “Build your project” it fails because I had already built the project in windows. So I remove the windows built ‘build’ folder. It then builds successfully.

I then click the [ESP-IDF QEMU] link on the activity bar. It creates merged_qemu.bin, and then prompts me to select Start QEMU. Immediately a status box appears “Cannot read property ‘fsPath’ of undefined”.

I have figured out how to manually get QEMU running and launch a gdb session through VS Code so I know all the tools and files are there correctly.

Expected behavior QEMU would launch, something like: qemu-system-xtensa -nographic -gdb tcp:3333 -S -machine esp32 -drive file=build/merged_qemu.bin,if=mtd,format=raw

gdb build/merged_qemu.elf would also run with the following start up commands:

target remote localhost:3333
monitor system_reset
tb app_main
c

Environment (please complete the following information):

• OS Name & Version: Windows 11 21H1 19043.1556, WSL2 Docker
• VSCode Version: 1.65.0
• ESP-IDF Version: 1.4.0

---------------------------------------------- ESP-IDF Extension for Visual Studio Code report ---------------------------------------------
OS linux x64 5.10.60.1-microsoft-standard-WSL2 
System environment variable IDF_PYTHON_ENV_PATH 
 /opt/esp/python_env/idf4.3_py3.6_env 
System environment variable PATH 
 /vscode/vscode-server/bin/linux-x64/b5205cc8eb4fbaa726835538cd82372cc0222d43/bin/remote-cli:/opt/esp/tools/xtensa-esp32-elf/esp-2021r2-8.4.0/xtensa-esp32-elf/bin:/opt/esp/tools/xtensa-esp32s2-elf/esp-2021r2-8.4.0/xtensa-esp32s2-elf/bin:/opt/esp/tools/xtensa-esp32s3-elf/esp-2021r2-8.4.0/xtensa-esp32s3-elf/bin:/opt/esp/tools/riscv32-esp-elf/esp-2021r2-8.4.0/riscv32-esp-elf/bin:/opt/esp/tools/esp32ulp-elf/2.28.51-esp-20191205/esp32ulp-elf-binutils/bin:/opt/esp/tools/esp32s2ulp-elf/2.28.51-esp-20191205/esp32s2ulp-elf-binutils/bin:/opt/esp/tools/cmake/3.16.4/bin:/opt/esp/tools/openocd-esp32/v0.11.0-esp32-20211220/openocd-esp32/bin:/opt/esp/python_env/idf4.3_py3.6_env/bin:/opt/esp/idf/tools:/opt/qemu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin 
System environment variable PYTHON 
 undefined 
Visual Studio Code version 1.65.0 
Visual Studio Code language en 
Visual Studio Code shell /bin/bash 
ESP-IDF Extension version 1.4.0 
---------------------------------------------------- Extension configuration settings ------------------------------------------------------
ESP-ADF Path (idf.espAdfPath) ${env:ADF_PATH}
ESP-IDF Path (idf.espIdfPath) /opt/esp/idf
ESP-MDF Path (idf.espMdfPath) ${env:MDF_PATH}
Custom extra paths (idf.customExtraPaths) 
Custom extra vars (idf.customExtraVars) {"OPENOCD_SCRIPTS":"/opt/esp/tools/openocd-esp32/v0.11.0-esp32-20211220/openocd-esp32/share/openocd/scripts"}
Virtual env Python Path (idf.pythonBinPath) /opt/esp/python_env/idf4.3_py3.6_env/bin/python
Serial port (idf.port) /dev/ttyUSB1
OpenOCD Configs (idf.openOcdConfigs) interface/ftdi/esp32_devkitj_v1.cfg,board/esp32-wrover.cfg
ESP-IDF Tools Path (idf.toolsPath) /opt/esp
Git Path (idf.gitPath) /usr/bin/git
-------------------------------------------------------- Configurations access -------------------------------------------------------------
Access to ESP-ADF Path (idf.espAdfPath) false
Access to ESP-IDF Path (idf.espIdfPath) true
Access to ESP-MDF Path (idf.espMdfPath) false
Access to ESP-IDF Custom extra paths
Access to Virtual env Python Path (idf.pythonBinPath) true
Access to CMake in environment PATH true
Access to Ninja in environment PATH true
Access to ESP-IDF Tools Path (idf.toolsPath) true
----------------------------------------------------------- Executables Versions -----------------------------------------------------------
Git version 2.17.1
ESP-IDF version 4.3.2
Python version 3.6.9
Python's pip version 21.3.1
-------------------------------------------------- Python packages in idf.pythonBinPath ----------------------------------------------------
bitstring version: 3.1.9
Brotli version: 1.0.9
cffi version: 1.15.0
click version: 8.0.4
construct version: 2.10.54
cryptography version: 3.4.8
ecdsa version: 0.17.0
Flask version: 0.12.5
Flask-Compress version: 1.11
Flask-SocketIO version: 2.9.6
future version: 0.18.2
gdbgui version: 0.13.2.0
gevent version: 1.5.0
greenlet version: 1.1.2
importlib-metadata version: 4.8.3
itsdangerous version: 2.0.1
Jinja2 version: 3.0.3
kconfiglib version: 13.7.1
MarkupSafe version: 2.0.1
pip version: 21.3.1
pycparser version: 2.21
pyelftools version: 0.28
pygdbmi version: 0.9.0.2
Pygments version: 2.11.2
pyparsing version: 2.3.1
pyserial version: 3.5
python-engineio version: 3.14.2
python-socketio version: 4.6.1
reedsolo version: 1.5.4
setuptools version: 59.6.0
six version: 1.16.0
typing_extensions version: 4.1.1
Werkzeug version: 0.16.1
wheel version: 0.37.1
zipp version: 3.6.0
---------------------------------------------------- Check ESP-IDF python requirements.txt -------------------------------------------------
Check ESP-IDF Python packages Python requirements from /opt/esp/idf/requirements.txt are satisfied.
---------------------------------------------------- Check extension requirements.txt ------------------------------------------------------
Check Extension Python packages Error
---------------------------------------------------- Check ESP-IDF debug adapter requirements.txt ------------------------------------------
Check Debug AdapterPython packages Error
---------------------------------------------------- Visual Studio Code launch.json --------------------------------------------------------
{
  "version": "0.2.0",
  "configurations": [
  
    {
      "type": "espidf",
      "name": "Launch",
      "request": "launch"
    }
  ]
} 
---------------------------------------------------- Visual Studio Code c_cpp_properties.json ----------------------------------------------
{
    "configurations": [
        {
            "name": "ESP-IDF",
            "compilerPath": "C:\\Users\\snoonan\\.espressif\\tools\\xtensa-esp32-elf\\esp-2021r2-patch2-8.4.0\\xtensa-esp32-elf\\bin\\xtensa-esp32-elf-gcc.exe",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "includePath": [
                "${config:idf.espIdfPath}/components/**",
                "${config:idf.espIdfPathWin}/components/**",
                "${config:idf.espAdfPath}/components/**",
                "${config:idf.espAdfPathWin}/components/**",
                "${workspaceFolder}/**"
            ],
            "browse": {
                "path": [
                    "${config:idf.espIdfPath}/components",
                    "${config:idf.espIdfPathWin}/components",
                    "${config:idf.espAdfPath}/components/**",
                    "${config:idf.espAdfPathWin}/components/**",
                    "${workspaceFolder}"
                ],
                "limitSymbolsToIncludedHeaders": false
            }
        }
    ],
    "version": 4
}
 
----------------------------------------------------------- Latest error -----------------------------------------------------------------
Latest error at Command failed: /opt/esp/python_env/idf4.3_py3.6_env/bin/python /opt/esp/idf/tools/check_python_dependencies.py -r "/root/.vscode-server/extensions/espressif.esp-idf-extension-1.4.0/esp_debug_adapter/requirements.txt"

--------------------------------------------------------------------------------------------------------------------------------------------

Logs The relevant logged error in /root/.vscode-server/extensions/espressif.esp-idf-extension-1.4.0/esp_idf_vsc_ext.log: {"user":true,"message":"Cannot read property 'fsPath' of undefined","stack":"TypeError: Cannot read property 'fsPath' of undefined\n\tat u.<anonymous> (/dist/extension.js:8:594999)\n\tat Generator.next (<anonymous>)\n\tat /dist/extension.js:8:593214\n\tat new Promise (<anonymous>)\n\tat l (/dist/extension.js:8:592959)\n\tat u.start (/dist/extension.js:8:594820)\n\tat u.<anonymous> (/dist/extension.js:8:593804)\n\tat Generator.next (<anonymous>)\n\tat s (/dist/extension.js:8:593016)\n\tat runMicrotasks (<anonymous>)\n\tat processTicksAndRejections (internal/process/task_queues.js:93:5)","level":"error","timestamp":"2022-03-04T20:08:01.927Z"}

Extension Configuration settings Entirety of settings.json is:

{
    "idf.gitPath": "/usr/bin/git",
    "idf.espIdfPathWin": "C:\\Users\\snoonan\\esp\\esp-idf",
    "idf.pythonBinPathWin": "C:\\Users\\snoonan\\.espressif\\python_env\\idf4.4_py3.8_env\\Scripts\\python.exe",
    "idf.toolsPathWin": "C:\\Users\\snoonan\\.espressif",
    "idf.customExtraPaths": "C:\\Users\\snoonan\\.espressif\\tools\\xtensa-esp32-elf\\esp-2021r2-patch2-8.4.0\\xtensa-esp32-elf\\bin;C:\\Users\\snoonan\\.espressif\\tools\\xtensa-esp32s2-elf\\esp-2021r2-patch2-8.4.0\\xtensa-esp32s2-elf\\bin;C:\\Users\\snoonan\\.espressif\\tools\\xtensa-esp32s3-elf\\esp-2021r2-patch2-8.4.0\\xtensa-esp32s3-elf\\bin;C:\\Users\\snoonan\\.espressif\\tools\\riscv32-esp-elf\\esp-2021r2-patch2-8.4.0\\riscv32-esp-elf\\bin;C:\\Users\\snoonan\\.espressif\\tools\\esp32ulp-elf\\2.28.51-esp-20191205\\esp32ulp-elf-binutils\\bin;C:\\Users\\snoonan\\.espressif\\tools\\esp32s2ulp-elf\\2.28.51-esp-20191205\\esp32s2ulp-elf-binutils\\bin;C:\\Users\\snoonan\\.espressif\\tools\\cmake\\3.20.3\\bin;C:\\Users\\snoonan\\.espressif\\tools\\openocd-esp32\\v0.11.0-esp32-20211220\\openocd-esp32\\bin;C:\\Users\\snoonan\\.espressif\\tools\\ninja\\1.10.2;C:\\Users\\snoonan\\.espressif\\tools\\idf-exe\\1.0.3;C:\\Users\\snoonan\\.espressif\\tools\\ccache\\4.3\\ccache-4.3-windows-64;C:\\Users\\snoonan\\.espressif\\tools\\dfu-util\\0.9\\dfu-util-0.9-win64",
    "idf.customExtraVars": "{\"OPENOCD_SCRIPTS\":\"/opt/esp/tools/openocd-esp32/v0.11.0-esp32-20211220/openocd-esp32/share/openocd/scripts\"}",
    "idf.ninjaArgs": ["-j 8"]
}

[Andrey-Morenkov]

Hi @brianignacio5 In stable version (from market) and in your shared vsix version (above) ActionBar->[ESP-IDF QEMU]->Start QEMU still doesn’t work. Got “Cannot read properties of undefined (reading ‘fsPath’)” error.

Doctor command and esp_idf_vsc_ext.log attached

esp_idf_vsc_ext.log doctor command.txt

(launch from command qemu-system-xtensa -nographic -machine esp32 -drive file=./build/merged_qemu.bin,if=mtd,format=raw is working fine)

[Mair]

hi @brianignacio5 I tried the following…

1. created a new project using the idf extension
2. launched the new project in the dev container
3. uninstalled the esp extension
4. downloaded and installed the new one
5. created a small project like so

#include <stdio.h>

void app_main(void)
{
    for (size_t i = 0; i < 100; i++)
    {
        printf("count %d\n", count++);
    }
}

1. built the project using idf.py build.
2. clicked on the [ESP-IDF QEMU] link at the bottom
3. clicked on Start QEMU and got this

root@ea4e97f18984:/workspaces/test-qemu# qemu-system-xtensa -nographic -machine esp32 -drive file=build/merged_qemu.bin,if=mtd,format=raw -serial tcp::5555,server,nowait
QEMU 5.2.0 monitor - type 'help' for more information
(qemu) Adding SPI flash device

Question… How do I see the output?

1. pressed F1 an selected Launch QENU debug session got this my debug output as follows

Debug adapter -> Extension: DEBUG_ADAPTER_STARTED
Starting. Cmd: /root/.vscode-server/extensions/espressif.esp-idf-extension-1.4.0/esp_debug_adapter/debug_adapter_main.py -d 5 -e /workspaces/test-qemu/build/test-qemu.elf -l /workspaces/test-qemu/debug.log -p 43474 -dn esp32 -a 0x10000 -t xtensa-esp32-elf- -om without_oocd -x /workspaces/test-qemu/esp-idf-vscode-generated.gdb
Listening on port 43474
Debug adapter -> Extension: DEBUG_ADAPTER_READY2CONNECT
Got connection
Got json: {
    "arguments": {
        "adapterID": "espidf",
        "clientID": "vscode",
        "clientName": "Visual Studio Code",
        "columnsStartAt1": true,
        "linesStartAt1": true,
        "locale": "en-us",
        "pathFormat": "path",
        "supportsInvalidatedEvent": true,
        "supportsMemoryReferences": true,
        "supportsProgressReporting": true,
        "supportsRunInTerminalRequest": true,
        "supportsVariablePaging": true,
        "supportsVariableType": true
    },
    "command": "initialize",
    "seq": 1,
    "type": "request"
}
Created gdb object of type: GdbEsp32
Debug Adapter initialized
Processed command: initialize
Got json: {
    "arguments": {
        "__sessionId": "b494633f-b881-4d1e-9774-471a273828a7",
        "elfFilePath": "/workspaces/test-qemu/build/test-qemu.elf",
        "name": "GDB QEMU",
        "request": "launch",
        "sessionID": "qemu.debug.session",
        "type": "espidf"
    },
    "command": "launch",
    "seq": 2,
    "type": "request"
}
Failed to wait for completion of command "-interpreter-exec console "source /workspaces/test-qemu/esp-idf-vscode-generated.gdb"" / 5!
Failed to wait for completion of command "-interpreter-exec console "source /workspaces/test-qemu/esp-idf-vscode-generated.gdb"" / 5!