Problem with Nano ESP32 and I2S code

[anon85221860]

There's more than one SD.h version in your libraries folder/s.

This may be similar issue / related to --

ESP32 BLE examples do not compile

OK, great. That makes the cause of the error clear: Background Arduino IDE has a "library discovery" system. For each #include directive in the program being compiled, the IDE first checks to see if the file is present in the the compiler's "search path". If not, it then searches through the root source folder of each of the installed libraries to look for a file of that name. Sometimes multiple libraries contain a file matching the #include directive. In this case, Arduino IDE must decide wh…