[General] FreeRTOS Device Software fails to build with ESP-IDF

[LesUski]

I am trying to use the Device software downloaded from IoT Core to flash it on my ESP32 with ESP-IDF tools. I've used the ESP tools with examples provided with it but when I'm trying to use the package from IoT Core I'm receiving CMake Error. I've followed the Get started with ESP-IDF v4.2 carefully and as I said the toolchain works with other projects.

This is the result of idf.py build command run in the project folder:

Running cmake in directory c:\esp32\esp32freertosaws\build
Executing "cmake -G Ninja -DPYTHON_DEPS_CHECKED=1 -DESP_PLATFORM=1 -DCCACHE_ENABLE=1 c:\esp32\esp32freertosaws"...
-- The C compiler identification is unknown
-- The CXX compiler identification is GNU 10.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: C:/cygwin64/bin/cc
-- Check for working C compiler: C:/cygwin64/bin/cc - broken
CMake Error at C:/Espressif/tools/cmake/3.20.3/share/cmake-3.20/Modules/CMakeTestCCompiler.cmake:66 (message):
  The C compiler

    "C:/cygwin64/bin/cc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: C:/ESP32/ESP32freertosaws/build/CMakeFiles/CMakeTmp

    Run Build Command(s):C:/Espressif/tools/ninja/1.10.2/ninja.exe cmTC_7b540 &&
    CreateProcess failed. Command attempted:
    "C:\cygwin64\bin\cc    -o CMakeFiles\cmTC_7b540.dir\testCCompiler.c.obj -c testCCompiler.c"
    ninja: fatal: CreateProcess: Access is denied.

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:8 (project)

So my question is how come ninja responds with Access is denied to cygwin64 even though that toolchain works with other projects?

System information

• Hardware board: ESP32-WROOM-32E
• IDE used: VSCode
• Operating System: Windows
• Code version: ESP-IDF 4.4
• Project/Demo: greengrass_connectivity

[tianmc1]

In the error logs this line -- The C compiler identification is unknown doesn't look quite right. Also I wonder if the compiler should be espressif's xtensa-esp32-elf-gcc instead of cygwin64. Can you check you IDF is properly installed and configured? You can try running idf.py build in ESP's example projects to see if they build successfully.

[aggarg]

Are you still facing this issue?