Hi there! I know a bunch of people have posted about this, but I’m getting this error and was not able to find any solutions. When trying to build my code, I get no warnings or errors but when linking it fails. This is what the terminal output looks like: [image] My codebase can be found HERE ( G…

Update for anyone who sees this in the future: the issue for me was using fstream. Oversight on my part (coming from C++ for computers), but the Teensy doesn’t have a file system built in so fstream can’t be used. Ended up fixing it by just writing directly using the SD library. (Code has been updat…

sivar2311 April 7, 2024, 7:24am 10

Due to the complexity, I suspect that one of the libraries used is not compatible.

A similar situation also occurred in this thread: Error compiling for Teensy 3.1

Collect2.exe: error: ld returned 1 exit status *** [.pio\build\teensy40\firmware.elf] Error 1