'i2s_pop_sample' was not declared in this scope

[ramatomo]

how to solve?
I've tried to use 1.0.6 ESP32 board instead 2.0.6 and the error is
" exit status 1
Error compiling for board ESP32 Dev Module."

[jozsefcsiza]

Try an older version. 1.0.5 or 1.0.4 of ESP32 library.

[ramatomo]

I tried without success 1.0.5, 1.0.4, 1.0.3

[jozsefcsiza]

Did you try to clean your project and restart the visual studio or the Arduino IDE? By the way which one are you using VS or Arduino IDE?

[ramatomo]

Arduino IDE

[jozsefcsiza]

Try to uninstall the ESP32 board manager and install the 1.0.3 and create a new project add the source code files to it.
I use the Visual Micro with Visual Studio not the Arduino IDE.

[dermaze]

Hello,

I ran into the same problem with an ESP32S3 zero, Arduino IDE 2.3.3 and esp32 board manager v3.0.7 (based on esp-idf 5.1). Do not use esp32 v3.1.x, as there's something broken at least in connection with the INMP441.

After a considerable amount of time in the google hell of random source code, I could now piece together a solution (at least for me, I don't use LEDMatrix or bluetooth, my usage of this code stops at the output of fftResult):

• Include the suggested changes from here to replace i2s_pop_sample and i2s_read_bytes with the new i2s_read function: 'i2s_pop_sample' was not declared in this scope s-marley/ESP32-INMP441-Matrix-VU#5 (comment)
• After i2s_driver_install and i2s_set_pin, now I2S needs to be started explicitly like so (taken from here):
  err = i2s_start(I2S_PORT); if (err != ESP_OK) { Serial.printf("Failed starting i2s: %d\n", err); while (true); } Serial.println("I2S started.");

Maybe this will be of help to some of you. I do not have an in-depth explanation for this besides "new library, new problems", as those gory details are beyond my knowledge / skill.

Thank you for your code / repository, @jozsefcsiza !