@dpasiliao Yea, Particle changed their library structure and it would not compile for me now also.
I make a bunch of changes to the #include < File > and changed them to #include “file” to indicate that the files were outside of the .ino file directory.
I removed the STM32 folder since it was not needed anyway.
The modified library is here, it compiles just fine now:
Let me know how it goes for you 