'class Print' has no member named 'flush'

[randomhammer]

I am trying to use the library on an ESP32 using PlatformIO and it does not compile. The error is:

src/PrintStream.cpp: In function 'Print& endl(Print&)':
src/PrintStream.cpp:23:11: error: 'class Print' has no member named 'flush'
   printer.flush();
           ^
src/PrintStream.cpp: In function 'Print& flush(Print&)':
src/PrintStream.cpp:48:11: error: 'class Print' has no member named 'flush'
   printer.flush();
           ^
*** [.pio/build/esp-wrover-kit/src/PrintStream.cpp.o] Error 1

It seems that the ESP32 Serial class has no flush method. Is there some easy fix for this that I can't seem to find on Google? I am using PlatformIO with the ESP32 board. Using this library with an Atmel board works just fine.

There is a second error message that shows up in the IDE's "Problems" window, but I don't see in the compiler output:

a value of type "enum <unnamed>" cannot be used to initialize an entity of type "enum <unnamed>"

Must be related, but I do not know how to diagnose. Any help would be appreciated.

[theotherjenkutler]

I had a similar problem using the library to write to LittleFS. I just commented out the printer.flush() methods in the .cpp file and it seems to be okay.